Abu Malik al-Ashja'i narrates from his father that he heard the Messenger of Allah (peace and blessings be upon him) when a man came and said: O Messenger of Allah, what should I say when I ask my Lord? He (peace and blessings be upon him) said: "Say: O Allah, forgive me, have mercy on me, grant me well-being and provide for me." And he (peace and blessings be upon him) brought together his four fingers, except the thumb: "For these words gather for you your religion and your worldly life."
Hadith Referenceالمعجم الكبير للطبراني / باب الطاء / 8154