Abu Mas'ud al-Badri · The Book on Marriage

The Messenger of Allah said: "Having food on the first day is was is obligatory, and having food on the second day is Sunnah, and having food on the third day is to be heard of, and whoever wants to be heard of, Allah will make him heard of."

"I said: 'O Messenger of Allah! I accepted Islam and I had two sisters (as wives).' So Messenger of Allah said: 'Chose whichever of them you will.'"]