Making du’aa’ together for one who has given charity
Question

                Some people who gather together to receive charity that is to be shared out among them put their hands on it, and one of them makes du’aa’ for the donor, and the others say “Ameen” in loud voices. Is this action correct?.
Praise be to Allah.This way of making du’aa’ is not appropriate, because it is bid’ah. Making du’aa’ for the 
    donor without putting one’s hands on the wealth given in charity and without raising voices in unison in the manner described is something that is 
    prescribed in sharee’ah, because the Prophet  (peace and blessings of Allaah be upon him) said: “Whoever does you a favour, then return it in 
    kind; if you cannot do that then keep making du’aa’ for him until that you think that you have returned the favour.” (Narrated by Abu Dawood and 
    al-Nasaa’i with a saheeh isnaad).