Narrated by Sayyiduna Abdullah bin Abbas (may Allah be pleased with him): A man came to the service of the Noble Prophet (peace and blessings be upon him) and said: O Messenger of Allah! My mother has passed away, and she had a month of fasting due upon her. Can I make up for it on her behalf? The Prophet (peace and blessings be upon him) said: If your mother had a debt, would you have paid it off? He said: Yes. The Prophet (peace and blessings be upon him) said: Then the debt of Allah is more deserving to be fulfilled.