He is going to form the intention to do a second ‘umrah when he is in Jeddah; where should he enter ihram from?
Question

                I am going to go from al-Jawf to perform ‘umrah, then go to Jeddah to meet my mother on the same day; she is coming from Egypt. Then I will form the intention to enter ihram again to perform ‘umrah with my mother. Where should I enter ihram for the second time – in Jeddah or in at-Tan‘eem?
Praise be to Allah.
    Firstly: 

    What is required of the one who sets out 
    for Makkah to perform Hajj or ‘Umrah is to enter ihram from the miqaat that 
    he passes through or comes in line with. It is not permissible for him to go 
    beyond that point without entering ihram. If he is closer [to Makkah] than 
    that, then his miqaat is the place from which he sets out, because the 
    Prophet (blessings and peace of Allah be upon him) said, when he defined the 
    miqaats: “They are for them and besides them for those who come through 
    those places with the intention of performing Hajj and 'Umrah; and whoever 
    is living within these boundaries can enter ihraam from the place he sets 
    out, and the people of Makkah can start from Makkah”

    Narrated by al-Bukhaari (1524) from the 
    hadeeth of Ibn ‘Abbaas (may Allah be pleased with him). 

    Based on that, what you must do is enter 
    ihram from the miqaat through which you pass or with which you come in line 
    on your way from al-Jawf to Makkah. 

    The scholars of the Standing Committee 
    said: 

    Whoever passes through one of the miqaats 
    that are proven from the Messenger of Allah (blessings and peace of Allah be 
    upon him) or comes in line with it by air or land or sea, intending to 
    perform Hajj or ‘Umrah, it is obligatory for him to enter ihram. If he is 
    not intending to perform Hajj or ‘Umrah, then he does not have to enter 
    ihram. If he passes it without intending to perform Hajj or ‘Umrah, then he 
    sets out for Hajj or ‘Umrah from Makkah or Jeddah, then he should enter 
    ihram from wherever he sets out from in Makkah or Jeddah, for example. In 
    the case of ‘umrah, if he sets out for it from outside the Haram zone, he 
    should enter ihram for it from where he sets out, but if he sets out for it 
    from within the Haram zone, he has to go out to the nearest point outside 
    the Haram zone and enter ihram from there for ‘Umrah. This is the basic 
    principle with regard to this matter. End quote. 

    Fataawa al-Lajnah ad-Daa’imah 
    (11/122) 

    Secondly: 

    With regard to the second ‘umrah that you 
    are intending to do from Jeddah, you can enter ihram for it from Jeddah, and 
    you do not have to go to at-Tan‘eem, because at-Tan‘eem is not specified as 
    a place to enter ihram. Rather it is a place outside the Haram zone to which 
    a resident of Makkah goes to in order to enter ihram for ‘umrah, but if he 
    goes out in a different direction beyond the Haram zone and enters ihram for 
    ‘umrah from there, that is valid. 

    Shaykh Ibn Baaz (may Allah have mercy on 
    him) said: 

    If a person wants to perform ‘umrah from 
    Makkah, he should go out of the Haram zone and enter ihram from there, such 
    as at-Tan‘eem, al-Ji‘raanah and so on, because the Prophet (blessings and 
    peace of Allah be upon him) instructed ‘Aa’ishah, when she was in Makkah and 
    wanted to perform ‘umrah, to go out to at-Tan‘eem and enter ihram from 
    there. End quote. 

    Majmoo‘ Fataawa Ibn Baaz 
    (17/41) 

    If a person goes out to Jeddah, and wants 
    to perform ‘umrah, he may enter ihram from Jeddah. 

    The scholars of the Standing Committee 
    also said: 

    If you set out for ‘umrah from Jeddah, 
    then enter ihram from Jeddah. 

    End quote from Fataawa al-Lajnah ad-Daa’imah 
    (11/136) 

    Shaykh Ibn Baaz (may Allah have mercy on 
    him) said: 

    Jeddah is not a miqaat for those coming 
    from further afield; rather it is a miqaat for those who live there and for 
    those who come there not intending to do Hajj or ‘Umrah, then they set out 
    for Hajj and ‘Umrah from there.

    End quote from Majmoo‘ Fataawa Ibn Baaz 
    (17/34) 

    Thirdly: 

    Doing a second ‘umrah on the same day or 
    soon after doing your first ‘umrah is not in accordance with the Sunnah and 
    it was not the practice of the early generations; rather your first ‘umrah 
    that you did from al-Jawf is sufficient for you. 

    If you want to do your ‘umrah with your 
    mother, then you can delay your ‘umrah; you can come from al-Jawf and enter 
    ihram at the miqaat at which the people of al-Jawf enter ihram, then go to 
    Jeddah and meet your mother, and you can delay your ‘umrah so that you can 
    accompany her. 

    Shaykh al-Islam (may Allah have mercy on 
    him) said in Majmoo‘ al-Fataawa (26/45): 

    Hence the more correct view according to 
    our companions is that which was narrated from Ahmad, that he did not regard 
    it as mustahabb to do ‘umrah repeatedly, either from Makkah or elsewhere. 
    Rather there should be a period of time between each two ‘umrahs, even if it 
    is only enough time for his hair to regrow so that he will be able to shave 
    it. End quote. 

    See also the answer to question no.
    111501

    And Allah knows best.