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 اللَّهِ مَنْ أَبِي قَالَ ‏"‏ أَبُوكَ فُلاَنٌ ‏"‏ ‏.‏ وَنَزَلَتْ ‏{‏ يَا أَيُّهَا الَّذِينَ آمَنُوا لاَ تَسْأَلُوا عَنْ أَشْيَاءَ إِنْ تُبْدَ لَكُمْ تَسُؤْكُمْ‏}‏ تَمَامَ الآيَةِ ‏.‏

Anas b. Malik reported that a person said: Allah's Messenger, who is my father? And he said: Your father is so and so, and there was revealed this verse:" Do not ask about matters which, if they were to be made manifest to you, might cause you harm" (v. 101). Translation Not Available

Book Ref: Sahih Muslim Book 43 Hadith 5824
Web Ref:  Sahih Muslim Book 30 Hadith 2359 b