Hazrat Aisha (may Allah be pleased with her) narrates that sometimes the Prophet Muhammad (peace and blessings be upon him) would ask for food in the morning, and if it was not available, he would fast that day.

Hazrat Umm Darda reports that sometimes Hazrat Abu Darda would ask for food in the morning; if it was not available, he would fast that day.

Hazrat Anas (may Allah be pleased with him) narrates that Hazrat Abu Talha used to ask his family members, "Do you have anything to eat?" They would reply, "No." So he would observe a fast. There is an addition in the narration of Thaqafi that if they had something, he would not fast.

Hazrat Harith narrates that Hazrat Mu'adh would come to his family after midday and ask them if they had anything to eat. If they apologized, Hazrat Mu'adh would say, "I will fast for the rest of the day." He would be told, "Will you fast in the last part of the day?" He would reply, "Whoever has not fasted in the last part of the day has not fasted in the first part either."

Hazrat Umm Darda reports that sometimes Hazrat Abu Darda would ask for food at noon, and if we did not have any food, he would observe a fast.

Hazrat Abu Ash'ath says that Hazrat Mu'adh would come to his family after the forenoon and ask them for food; if there was no food, he would fast that day.