AL MAA-IDAH — Ayat 101

يَا أَيُّهَا الَّذِينَ آمَنُواْ لاَ تَسْأَلُواْ عَنْ أَشْيَاء إِن تُبْدَ لَكُمْ تَسُؤْكُمْ وَإِن تَسْأَلُواْ عَنْهَا حِينَ يُنَزَّلُ الْقُرْآنُ تُبْدَ لَكُمْ عَفَا اللّهُ عَنْهَا وَاللّهُ غَفُورٌ حَلِيمٌ

O you who have believed, do not ask about things which, if they are shown to you, will distress you. But if you ask about them while the Qur'an is being revealed, they will be shown to you. Allah has pardoned that which is past; and Allah is Forgiving and Forbearing.