Sayyiduna Zaid bin Arqam (may Allah be pleased with him) said: One day, the Messenger of Allah (peace and blessings be upon him) stood up to deliver a sermon. He praised Allah and glorified Him, then said: "O people! I am a human being. Soon, the messenger of my Lord (the angel of death) will come to me and I will accept (his call). I am leaving among you two weighty things: the first is the Book of Allah, in it is guidance and light. So hold fast to the Book of Allah and adhere to it firmly." Thus, the Prophet (peace and blessings be upon him) encouraged and urged towards the Book of Allah. Then he said: "And my family (Ahl al-Bayt), I remind you by Allah regarding my family, I remind you by Allah regarding my family, I remind you by Allah regarding my family." He said this three times.