'Abdullah ibn 'Amr was heard to say, "Abu Bakr, may Allah be pleased
with him, said to the Prophet, may Allah bless him and grant him peace,
'Teach me a supplication which I can use in my prayer.' He said, 'Say,
"O Allah, I have wronged myself greatly. Only You forgive wrong actions.
Forgive me with forgiveness directly from you. You are the Ever-Forgiving,
Most Merciful."'"