Fath al-Rabbani

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that when this verse was revealed {وَلِلّٰہِ عَلَی النَّاسِ حِجُّ الْبَیْتِ مَنِ اسْتَطَاعَ إِلَیْہِ سَبِیلًا} … Pilgrimage to the House is a duty owed to Allah by all people who can find a way to do it. The people said: O Messenger of Allah! Is Hajj obligatory every year? The Prophet (peace and blessings be upon him) remained silent. They asked again: Is Hajj obligatory every year? The Prophet (peace and blessings be upon him) said: No, and if I had said yes, it would have become obligatory every year. Then Allah the Exalted revealed this verse: {یٰٓاَیُّھَا الَّذِیْنَ اٰمَنُوْا لَا تَسْئــَـلُوْا عَنْ اَشْیَاء َ اِنْ تُبْدَ لَکُمْ تَسُؤْکُمْ وَاِنْ تَسْئــَـلُوْا عَنْہَا حِیْنَیُنَزَّلُ الْقُرْاٰنُ تُبْدَ لَکُمْ عَفَا اللّٰہُ عَنْہَا وَاللّٰہُ غَفُوْرٌ حَلِیْمٌ۔} … O you who believe! Do not ask about things which, if made plain to you, may cause you trouble. But if you ask about them while the Qur’an is being revealed, they will be made plain to you. Allah has pardoned that, and Allah is Most Forgiving, Most Forbearing.

Narrated by Sayyiduna Anas bin Malik (may Allah be pleased with him): A man said, "O Messenger of Allah! Who is my father?" The Prophet (peace and blessings be upon him) replied, "Your father is so-and-so." Then this verse was revealed: {یٰٓاَیُّھَا الَّذِیْنَ اٰمَنُوْا لَا تَسْئَـلُوْا عَنْ اَشْیَائَ اِنْ تُبْدَ لَکُمْ تَسُؤْکُمْ وَاِنْ تَسْئَـلُوْا عَنْہَا حِیْنَیُنَزَّلُ الْقُرْاٰنُ تُبْدَ لَکُمْ عَفَا اللّٰہُ عَنْہَا وَاللّٰہُ غَفُوْرٌ حَلِیْمٌ۔} … O you who have believed! Do not ask about things which, if they are made apparent to you, will distress you. But if you ask about them while the Qur'an is being revealed, they will be made apparent to you. Allah has pardoned that, and Allah is Most Forgiving, Most Forbearing.