The Prophet (ﷺ) delivered a Khutba (religious talk) the like of which I had never heared before. He said, "If you but knew what I know then you would have laughed little and wept much." On hearing that, the companions of the Prophet (ﷺ) covered their faces and the sound of their weeping was heard. A man said, "Who is my father?" The Prophet (ﷺ) said, "So-and-so." So this Verse was revealed: " Ask not about things which, if made plain to you, may cause you trouble." (V.5:101) [6:145-O.B]