Hazrat Abdullah bin Abi Bakr says: We were present in the service of Sayyida Aisha (may Allah be pleased with her) when food was brought, so Hazrat Qasim got up and started to pray. Then Sayyida Aisha (may Allah be pleased with her) said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Do not pray when food is present, nor in a state when one is restraining urine or stool."