Musannaf Ibn Abi Shaybah 9356 — Those who called for their morning

Al-Ala' bin al-Harith said: Sayyiduna Mu'adh (may Allah be pleased with him) would come to his family after the sun had passed its zenith and ask them: "Do you have anything to eat?" If they apologised, Sayyiduna Mu'adh would say: "Then I am fasting for the rest of my day." It was said to him: "Will you fast in the last part of the day?" He would say: "Whoever has not fasted the last part of the day has not fasted its first part."