Abud Darda’ said he heard God’s messenger say, "If one of you has any complaint, or if a brother of his complains of it, he should say, ‘Our Lord God who art in heaven, hallowed be Thy name. Thy command is in the heaven and the earth. As Thy mercy is in the heaven so place Thy mercy in the earth. Forgive us our faults and sins. Thou art the Lord of the good ones. Send down some of Thy mercy and some of Thy healing on this pain’ and it will be cured.”
He said that the Prophet used to teach them to say when afflicted by fever or any pain, "In the name of God, the Great, I seek refuge in God, the Mighty, from the evil of every vein that bleeds and from the evil of the heat of hell.”
Tirmidhi transmitted it, but said this was a gharib tradition which he knew only among the traditions of Ibrahim b. Isma'il who is declared to be weak in tradition.
‘Abdallah b. ‘Amr reported God’s messenger as saying, "When a man comes to visit an invalid he should say, ‘O God, cure Thy servant who may then wreak havoc on an enemy for Thy sake, or walk at a funeral for Thy sake’.”
Ibn ‘Abbas reported God’s messenger as saying, "No Muslim will visit another and say seven times, ‘I ask God, the Mighty, the Lord of the mighty throne, to cure you’ without his being cured, unless his time has come.”
