Muwatta Malik, Book 41, Hadith 1505 (In-Book)

Malik related to me from Yahya ibn Said that Said ibn al-Musayyab said, "I have heard that the Messenger of Allah, may Allah bless him and 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 better for you.' " Yahya ibn Said said, "I related this hadith in an assembly among whom was Yazid ibn Nuaym ibn Hazzal al-Aslami. Yazid said, 'Hazzal was my grandfather. This hadith is true.' "

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 ‏.‏

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also referenced under: Book 41, Hadith 3 (USC-MSA)