(O ye who believe!) this was revealed about Harith Ibn Yazid who asked the Prophet (pbuh)-when the verse (And pilgrimage to the House is a duty unto Allah for mankind) was revealed: "Is it once every year, O Messenger of Allah?" So Allah forbade him from asking such questions, and started by addressing him with (O ye who believe!), (Ask not) your Prophet (of things) that Allah has relieved you of (which, if they were made known unto you) if they were made obligatory upon you, (would trouble you; but if you ask of them) if you ask of the things that you were relieved of (when the Qur'an is being revealed) when Gabriel brings down the Qur'an, (they will be made known unto you) they will be made obligatory upon you. (Allah pardoneth this) this questioning, (for Allah is Forgiving) of the one who repents, (Clement) vis-"-vis your ignorance.