Saying Aqaamaha Allaahu wa adaamaha (May Allaah make it continually established) when the iqaamah for prayer is given
Question

                I heard some people saying “aqamaha Allahu wa adaamaha” (may Allah keep prayers continually established), when the Mu’azzin says: “qad qaamat As-salaah” (prayer is about to begin). Is that permissible?.
Praise be to Allah.
    The basic principle with regard to acts of worship is 
    tawqeef, i.e., (i.e., acts of worship are to be based solely on Qur’aan and 
    saheeh Sunnah with no room for personal opinion). There is no proof that the 
    Prophet  (peace and blessings of Allaah be upon him) said, when he heard 
    the iqaamah, Aqaamaha Allaahu wa adaamaha (May Allaah make it 
    continually established). But Abu Dawood narrated that in his Sunan 
    via a weak isnaad. He said: Sulayman ibn Dawood al-‘Ataki told us, Muhammad 
    ibn Thaabit told us, a man from Syria told us, from Shahr ibn Hooshab, from 
    Abu Umaamah or one of the companions of the Prophet  (peace and 
    blessings of Allaah be upon him), that Bilaal began to recite the iqaamah, 
    and when he said Qad qaamat il-salaah (Prayer is about to begin), the 
    Prophet (peace and blessings of Allaah be upon him) said: Aqaamaha 
    Allaahu wa adaamaha (May Allaah make is continually established). The 
    reason why this report is da’eef is that its isnaad includes an unknown man, 
    and the narration of one who is unknown cannot be quoted as evidence. Thus 
    it is clear that saying Aqaamaha Allaahu wa adaamaha (May Allaah make 
    it continually established) when the muezzin says Qad qaamat il-salaah 
    (prayer is about to begin) is not prescribed, because it is not proven that 
    the Prophet  (peace and blessings of Allaah be upon him) said it. rather 
    it is better for the one who hears the iqaamah to say what the muezzin says, 
    because it is an adhaan, and the Prophet  (peace and blessings of Allaah 
    be upon him) said: “When you hear the muezzin, say what he says.” 

    And Allaah is the Source of strength. May Allaah send 
    blessing and peace upon our Prophet Muhammad and his family and companions. 

    Standing Committee for Academic Research and Issuing Fatwas