3. We were told by Ali bin Fadl al-Baghdadi, that he said: I heard Abu Umar and the companion of Abu’l-Abbas, Taghlib, say: I heard Abu’l-Abbas, Taghlib, asking about the meaning of the saying of him, Allah’s blessings be upon him and his Family: «Indeed, I am leaving among you the Two Weighty Things» Why were they named Two Weighty Things? He said: Because adherence to them is heavy.