It is narrated from Sa'id bin al-Musayyib that the Messenger of Allah, peace and blessings be upon him, said to a man from the tribe of Aslam whose name was Hazzal: "O Hazzal! If you had concealed this matter, it would have been better for you." Yahya bin Sa'id said: I narrated this hadith in a gathering in which Yazid bin Na'eem bin Hazzal al-Aslami was present, so Yazid said: Hazzal was my grandfather, and this hadith is true.