Surah Al-Ma'idah, ayah 101

5:101

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ لَا تَسۡـَٔلُواْ عَنۡ أَشۡيَآءَ إِن تُبۡدَ لَكُمۡ تَسُؤۡكُمۡ وَإِن تَسۡـَٔلُواْ عَنۡهَا حِينَ يُنَزَّلُ ٱلۡقُرۡءَانُ تُبۡدَ لَكُمۡ عَفَا ٱللَّهُ عَنۡهَاۗ وَٱللَّهُ غَفُورٌ حَلِيمٞ ١٠١

Yā'ayyuhal-ladhīna āmanū lā tas'alū 'an ashyā'a in tubda lakum tasu'kum wa in tas'alū 'anhā hīna yunazzalul-qur'ānu tubda lakum 'afallāhu 'anhā wallāhu ghafūrun halīm

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’ān is being revealed, they will be shown to you. Allāh has pardoned it [i.e., that which is past]; and Allāh is Forgiving and Forbearing.