Zuhayr bin Mua'wiya bin Hudayj زهير بن معاوية بن حديج · The Book of Fasting

"I heard the Messenger of Allah inviting people to have Sahur in Ramadan. He said: 'Come to the blessed breakfast." (Hasan) Chatper 26. Calling Sahur "Ghada" (Breakfast)

"The Messenger of Allah fasted from Al-Madinah until he came to Qudaid, then he broke his fast until he reached Makkah."

"I heard the Messenger of Allah say: "Whoever fasts three days of each month has fasted the month in full' or 'will have (the reward of) fasting the month."' 'Asim was in doubt.