And Qutaybah ibn Sa'id narrated to us, from Malik ibn Anas — in what was read to him — from Yahya ibn Sa'id, who said: I heard Abu al-Hubab Sa'id ibn Yasar say: I heard Abu Hurayrah say: The Messenger of Allah, peace and blessings be upon him, said: "I have been commanded to [migrate to] a town that consumes the towns. They call it Yathrib, and it is Madinah. It expels people as the bellows expel the impurity of iron."