His work requires him to play a standard adhaan preceded by Qur’aan recitation and followed by salawaat upon the Prophet (peace and blessings of Allaah be upon him)
Question

                A brother working as Mu’adhin (who calls for prayers) in the ministry of Islamic endowments is asking: “I am working as Mu’adhin and serving in a masjid, we were commanded some time ago to play the adhaan via radio when the time of adhaan comes. We were also ordered to play Quraan recitation before the adhaan time, and follow the adhaan loudly by sending peace and blessing upon prophet Muhammad (PBUH).

The question: am I sinful to do these, knowing that I am officially commanded to do them? If I do not fulfill the commands it may cause ham to me.”.
Praise be to Allah.
    Firstly: 

    Giving the adhaan via recording or broadcasting equipment, or 
    sending it from one place to other mosques via such equipment is an 
    innovation (bid’ah). The ruling on that has been discussed in the answer to 
    question no. 48990. 

    Secondly: 

    Reciting Qur’aan and tasbeeh and adhkaar before the adhaan 
    for the five daily prayers is also an innovation (bid’ah).  

    The scholars of the Standing Committee were asked: 

    What is the Islamic ruling on reading Qur’aan on Friday 
    before Zuhr prayer over the loudspeakers? If you say that this is something 
    that has no basis, they will say to you: “Do you want to stop people reading 
    Qur’aan?” What you think about the religious nasheed over the loudspeakers 
    that come shortly before the adhaan for Fajr? If you say that this is 
    something for which there is no evidence, they will say to you: “This is a 
    good deed, it wakes the people for Fajr prayer.” 

    They replied: We do not know of any evidence which suggests 
    that this was done at the time of the Messenger  (peace and blessings of 
    Allaah be upon him) and we do not know of any of the Sahaabah who did it. 
    The same applies to the nasheed which come over the loudspeakers before the 
    adhaan for Fajr. This is an innovation, and every innovation is a going 
    astray. It is proven that the Prophet  (peace and blessings of Allaah be 
    upon him) said: “Whoever introduces anything into this matter of ours that 
    is not part of it will have it rejected.” End quote. 

    Shaykh ‘Abd al-‘Azeez ibn Baaz, Shaykh ‘Abd al-Razzaaq 
    ‘Afeefi, Shaykh ‘Abd-Allaah ibn Ghadyaan, Shaykh ‘Abd-Allaah ibn Qa’ood. 

    Fataawa al-Lajnah al-Daa’imah 
    (2/495, 496) 

    Thirdly: 

    For the muezzin to send blessings (salawaat) upon the Prophet 
     (peace and blessings of Allaah be upon him) out loud following the 
    adhaan is also an innovation (bid’ah), because the adhaan is an act of 
    worship, and it is not permissible to add anything to its wording or take 
    anything away from it. It starts with the muezzin saying “Allaahu akbar, 
    Allaahu akbar” and it ends with him saying “Laa ilaaha ill-Allaah.” Anything 
    that is added to the adhaan, before or after, is an innovation. 

    These people have mixed the adhaan with Qur’aan and adhkaar 
    before and after it to such an extent that the adhaan is lost in the midst 
    of all these adhkaar. They are also disturbing the people at the times when 
    they sleep and when they worship. 

    Ibn al-Jawzi (may Allaah have mercy on him) said, discussing 
    ways in which the shaytaan tricks the muezzins: 

    They mix the adhaan of Fajr with reminders and tasbeeh and 
    exhortations, and they put the adhaan in the midst of that and mix it with 
    that. The scholars regarded it as makrooh to add anything to the adhaan. We 
    have seen people who often get up in the night and stand on the minaret, 
    exhorting and reminding, and some of them recite soorahs from the Qur’aan in 
    a loud voice, which keeps the people from sleeping, and confuse people who 
    are reciting Qur’aan in their tahajjud. All of these are reprehensible 
    actions. End quote 

    Talbees Iblees (p. 157) 

    Al-Maqreezi (may Allaah have mercy on him) said, discussing 
    the history of this innovation and the rulings on it:  

    It was introduced in 791 AH, when some confused ascetic heard 
    the muezzins sending salaams on the Messenger of Allaah  (peace and 
    blessings of Allaah be upon him) in the night before Friday (which is also 
    an innovation). A number of his brothers regarded this as something good and 
    he said to them: Would you like this salaam to be included with every 
    adhaan? They said: Yes. That night passed, and in the morning he claimed 
    that he had seen the Messenger of Allaah  (peace and blessings of Allaah 
    be upon him) in a dream and that he told him to go to the man in charge and 
    tell him that the Prophet  (peace and blessings of Allaah be upon him) 
    was telling him to order the muezzins to send salaams on the Messenger of 
    Allaah  (peace and blessings of Allaah be upon him) in every adhaan. So 
    he went to the man in charge of Cairo, who at that time was Najm al-Deen 
    Muhammad al-Tanbadi, who was an ignorant old man and was known for his bad 
    conduct and was known to care only for money even if that led him to doom, 
    and he was not ashamed to take bribes, and he did not care about the welfare 
    of the Muslims, and his ignorant ideas and bad deeds were well known, and he 
    said to him: The Messenger of Allaah  (peace and blessings of Allaah be 
    upon him) is telling you to order all the muezzins to add the words 
    Al-salaatu wa’l-salaam ‘alayka yaa rasool-Allaah (Blessings and peace be 
    upon you, O Messenger of Allaah) to every adhaan, as they do every Friday 
    night. The ignorant man liked this suggestion, and he was unaware that the 
    Messenger of Allaah  (peace and blessings of Allaah be upon him) does 
    not enjoin anything after his death except that which is in accordance with 
    what Allaah had prescribed on his lips during his lifetime, and that in His 
    Holy Book Allaah forbade adding anything to His laws, as He says 
    (interpretation of the meaning): “Or have they partners with Allaah 
    (false gods) who have instituted for them a religion which Allaah has not 
    ordained?” [al-Shoora 42:21].  And the Messenger of Allaah  (peace 
    and blessings of Allaah be upon him) said: “Beware of newly-invented 
    matters.” So he issued orders to that effect in Sha’baan of the year 
    mentioned, and this innovation was introduced fully, and it has lasted until 
    our own times in all areas of Egypt and Syria, and the common folk and 
    ignorant people think that this is part of the adhaan which it is not 
    permissible to omit. That has led to some of the heretics in some villages 
    adding after the adhaan salaam to some people who have died. There is no 
    power and no strength except with Allaah. To Allaah we belong and unto Him 
    is our return. End quote from al-Khatat al-Makhreeziyyah (2/172). See 
    also al-Ibdaa’ fi Madaar al-Ibtidaa’ by Shaykh ‘Ali Mahfooz (p. 
    172-174). 

    Shaykh ‘Abd al-‘Azeez ibn Baaz (may Allaah have mercy on him) 
    was asked: 

    Here in Jordan and in other countries, some muezzins say, 
    after the adhaan, ‘Allahumma salli ‘ala sayyidina Muhammad wa ‘ala aalihi 
    wa sahbihi ajma’een (O Allaah, send blessings upon our Master Muhammad 
    and upon all his family and companions). Is there anything wrong with that? 
    What is the ruling on it? 

    He replied: 

    That depends. If the muezzin says it in a low voice, it is 
    prescribed for the muezzin and others who answer the muezzin, because the 
    Prophet  (peace and blessings of Allaah be upon him) said: “When you 
    hear the muezzin then say what he says, then send blessings upon me, for 
    whoever sends one blessing upon me, Allaah will send ten blessings upon him 
    in return, then ask Allaah to grant me al-waseelah, which is a position in 
    Paradise that will be granted to only one slave of Allaah, and I hope that I 
    will be the one, so whoever asks for al-waseelah for me, then my 
    intercession will be granted for him.”  Narrated by Muslim in his Saheeh. 
    Al-Bukhaari narrated in his Saheeh that Jaabir ibn ‘Abd-Allaah (may 
    Allaah be pleased with him) said: The Messenger of Allaah  (peace and 
    blessings of Allaah be upon him) said: 
    “Whoever says when he hears the call to prayer, ‘Allaahummah 
    Rabba haadhihi’l-da’wat il-taammah wa’l-salaat il-qaa’imah, aati Muhammadan 
    al-waseelata wa’l-fadeelah, wab’athhu maqaaman mahmoodan alladhi wa’adtahu 
    (O Allaah, Lord of this perfect Call and the Prayer to be offered, grant 
    Muhammad the privilege and also the eminence, and resurrect him to the 
    praised position that You have promised), will be granted my intercession on 
    the Day of Resurrection.”

    But if the muezzin says that in a loud voice, like the 
    adhaan, then it is an innovation (bid’ah), because it may be thought that it 
    is part of the adhaan. It is not permissible to add anything to the adhaan, 
    because the last words of the adhaan are Laa ilaaha ill-Allaah (there 
    is no god but Allaah) and it is not permissible to add anything to that. If 
    that was a good thing, then the righteous salaf would have done it before 
    us, and the Prophet  (peace and blessings of Allaah be upon him) would 
    have taught it to his ummah and prescribed it for them. He  (peace and 
    blessings of Allaah be upon him) said: “Whoever does any action that is not 
    part of this matter of ours will have it rejected.” Narrated by Muslim in 
    his Saheeh; the original version is narrated in al-Saheehayn 
    from ‘Aa’ishah (may Allaah be pleased with her).  

    I ask Allaah to increase us and you and all of our brothers 
    in understanding of His religion, and to enable us all to adhere steadfastly 
    to it, for He is All-hearing, Ever near. End quote. 

    Fataawa al-Shaykh Ibn Baaz 
    (1/439, 440) and (10/362, 363). 

    In Fataawa al-Lajnah al-Daa’imah (6/101-103) it says: 

    After the adhaan, it is prescribed for the muezzin and others 
    to send blessings upon the Prophet  (peace and blessings of Allaah be 
    upon him), then to say: “Allaahummah Rabba 
    haadhihi’l-da’wat il-taammah wa’l-salaat il-qaa’imah … 
    (O Allaah, Lord of this perfect 
    Call and the Prayer to be offered …). But the muezzin and others should say 
    this quietly, and not raise their voices, because it is not prescribed to 
    say it out loud, as stated above. End quote. 

    Fourthly: 

    Once it is understood that 
    standardizing the adhaan is an innovation, and it is an innovation to recite 
    tasbeeh, dhikr and Qur’aan before the adhaan, and it is an innovation to 
    send blessing and salaams upon the Prophet  (peace and blessings of 
    Allaah be upon him) out loud after the adhaan, then the ruling on the 
    muezzins doing these actions will become clear, which is that it is not 
    permissible to do that. If the muezzin thinks that this is something 
    temporary, and that it will soon be changed or that he can become an imam or 
    take up an administrative position, then he can stay there for a while, but 
    if this continues, then he should not stay in that job where he will be 
    playing a role in spreading these innovations. 

    And Allaah knows best.