Abu Sa'id al-Khudri reported God’s Messenger as saying, “All jinn, men, or any other creatures who hear the voice of the mu’adhdhin as far away as it is possible to hear it will testify on his behalf on the day of resurrection.”
Abu Huraira reported God’s Messenger as saying, “When a summons to prayer is made the evil turns his back and breaks wind so as not to hear the call being made, but when the summons is finished he turns round. When a second call to prayer is made he turns his back, and when the second call is finished he turns round to distract a man, saying, ‘Remember such and such ; remember such and such’, referring to something the man did not have in mind, with the result that he does not know how much he has prayed.”
‘Abdallah b. ‘Amr b. al-‘As reported God's Messenger as saying, “When you hear the mu’adhdhin repeat what he says, then invoke a blessing on me, for everyone who invokes one blessing on me will receive ten blessings from God. Then ask God to give me the wasila, which is a rank in paradise fitting for only one of God’s servants, and I hope that I may be the one. If anyone asks that I be given the wasila, he will be assured of my intercession.”