Sahih Muslim Book - 43, Hadith - 6120

وَحَدَّثَنَا مُحَمَّدُ بْنُ مَعْمَرِ بْنِ رِبْعِيٍّ الْقَيْسِيُّ ، حَدَّثَنَا رَوْحُ بْنُ عُبَادَةَ ، حَدَّثَنَا شُعْبَةُ ، أَخْبَرَنِي مُوسَى بْنُ أَنَسٍ ، قَالَ: سَمِعْتُ أَنَسَ بْنَ مَالِكٍ ، يَقُولُ: قَالَ رَجُلٌ: يَا رَسُولَ اللهِ ، مَنْ أَبِي ؟ قَالَ : أَبُوكَ فُلاَنٌ وَنَزَلَتْ: {يَا أَيُّهَا الَّذِينَ آمَنُوا لاَ تَسْأَلُوا عَنْ أَشْيَاءَ إِنْ تُبْدَ لَكُمْ تَسُؤْكُمْ} تَمَامَ الآيَةِ.

Anas bin Malik said: “A man said: ‘O Messenger of Allah, who is my father?’ He said: ‘Your father is so-and-so.’ Then the Verse: ‘O you who believe! Ask not 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 forgiven that, and Allah is Oft-Forgiving, Most Forbearing. was revealed.”