Ibn ‘Umar said that God’s messenger never failed to use these words evening and morning, “O God, I ask Thee for security in this world and the next; O God, I ask Thee for forgiveness and security in my religion and my worldly affairs, in my family and my property; O God, conceal my faults and keep me safe from the things which I fear; O God, guard me in front of me and behind me, on my right hand and on my left, and from above me; and I seek refuge in Thy greatness from receiving unexpected harm from below me.” Waki‘ said he meant being swallowed up by the earth.
Al-Harith b. Muslim at-Tamimi quoted his father as saying that God’s messenger told him secretly to say seven times when he had finished the sunset prayer, before speaking to anyone, “O God, protect me from hell”; for if he said that and died that night, exemption from it would be recorded for him. He also told him to say that when he had prayed the morning prayer, for if he died that day, exemption from it would be recorded for him.
Anas reported God's messenger as saying that if anyone says in the morning, “O God, in the morning we call Thee, the bearers of Thy Throne, Thy angels and all Thy creatures to witness that Thou art God than whom alone there is no god, being without a partner, and that Muhammad is Thy servant and messenger,” God will forgive him any sins he commits that day; and if he says it in the evening, God will forgive him any sins he commits that night.
Tirmidhi and Abu Dawud transmitted it, Tirmidhi saying this is a gharib tradition.
Abu ‘Ayyash reported God's messenger as saying that if anyone says in the morning, “There is no god but God alone who has no partner; to Him belongs the dominion, to Him praise is due, and He is omnipotent,” he will have a reward equivalent to that for setting free a slave from among the descendants of Ishmael, will have ten good deeds recorded for him, will have ten evil deeds deducted from him, will be advanced ten degrees, and will be guarded from the devil till the evening. If he says them in the evening he will have a similar recompense till the morning. Hammad b. Salama said that a man saw God’s messenger in a dream and said, “Messenger of God, Abu ‘Ayyash is relating such and such on your authority,” to which he received the reply, “Abu ‘Ayyash has spoken the truth.”
