Narrated Isma`il bin Abi Khalid:I heard Abii Juhaifa saying, "I saw the Prophet, and Al-Hasan bin `Ali resembled him." I said to Abu- Juhaifa, "Describe him for me." He said, "He was white and his beard was black with some white hair. He promised to give us 13 young she-camels, but he expired before we could get them."
حَدَّثَنِي عَمْرُو بْنُ عَلِيٍّ، حَدَّثَنَا ابْنُ فُضَيْلٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ أَبِي خَالِدٍ، قَالَ سَمِعْتُ أَبَا جُحَيْفَةَ ـ رضى الله عنه ـ قَالَ رَأَيْتُ النَّبِيَّ صلى الله عليه وسلم وَكَانَ الْحَسَنُ بْنُ عَلِيٍّ ـ عَلَيْهِمَا السَّلاَمُ ـ يُشْبِهُهُ قُلْتُ لأَبِي جُحَيْفَةَ صِفْهُ لِي. قَالَ كَانَ أَبْيَضَ قَدْ شَمِطَ. وَأَمَرَ لَنَا النَّبِيُّ صلى الله عليه وسلم بِثَلاَثَ عَشْرَةَ قَلُوصًا قَالَ فَقُبِضَ النَّبِيُّ صلى الله عليه وسلم قَبْلَ أَنْ نَقْبِضَهَا.
Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions • Hadith 53