حَدَّثَنِي مَالِكٌ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، أَنَّهُ قَالَ بَلَغَنِي أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ لِرَجُلٍ مِنْ أَسْلَمَ يُقَالُ لَهُ هَزَّالٌ ‏"‏ يَا هَزَّالُ لَوْ سَتَرْتَهُ بِرِدَائِكَ لَكَانَ خَيْرًا لَكَ ‏"‏ ‏.‏ قَالَ يَحْيَى بْنُ سَعِيدٍ فَحَدَّثْتُ بِهَذَا الْحَدِيثِ فِي مَجْلِسٍ فِيهِ يَزِيدُ بْنُ نُعَيْمِ بْنِ هَزَّالٍ الأَسْلَمِيِّ فَقَالَ يَزِيدُ هَزَّالٌ جَدِّي وَهَذَا الْحَدِيثُ حَقٌّ ‏.‏

Malik related to me from Yahya ibn Said that Said ibn al-Musayyabsaid, "I have heard that the Messenger of Allah, may Allah bless himand grant him peace, said to a man from the Aslam tribe called Hazzal,'Hazzal, had you veiled him with your cloak, it would have been betterfor you.' " Yahya ibn Said said, "I related this hadith in anassembly among whom was Yazid ibn Nuaym ibn Hazzal al-Aslami. Yazidsaid, 'Hazzal was my grandfather. This hadith is true.' " Translation Not Available

Book Ref: Muwatta Imam Malik Book 41 Hadith 1505
Web Ref:  Muwatta Imam Malik Book 41 Hadith 3