Language:
كتاب فضائل أصحاب النبى صلى الله عليه وسلم
62  
Companions of the Prophet
(22)
Chapter: The merits of Al-Hasan and Al-Husain رضي الله عنهما
(22)
باب مَنَاقِبُ الْحَسَنِ وَالْحُسَيْنِ رضى الله عنهما
Sahih al-Bukhari 3749

Narrated Muhammad:

Anas bin Malik said, "The head of Al-Husain was brought to 'Ubaidullah bin Ziyad and was put in a tray, and then Ibn Ziyad started playing with a stick at the nose and mouth of Al-Husain's head and saying something about his handsome features." Anas then said (to him), "Al-Husain resembled the Prophet more than the others did." Anas added, "His (i.e. Al-Husain's) hair was dyed with Wasma (i.e. a kind of plant used as a dye).

حَدَّثَنَا حَجَّاجُ بْنُ الْمِنْهَالِ، حَدَّثَنَا شُعْبَةُ، قَالَ أَخْبَرَنِي عَدِيٌّ، قَالَ سَمِعْتُ الْبَرَاءَ ـ رضى الله عنه ـ قَالَ رَأَيْتُ النَّبِيَّ صلى الله عليه وسلم وَالْحَسَنُ عَلَى عَاتِقِهِ يَقُولُ ‏ "‏ اللَّهُمَّ إِنِّي أُحِبُّهُ فَأَحِبَّهُ ‏"‏‏.‏
Reference : Sahih al-Bukhari 3749
In-book reference : Book 62, Hadith 0
USC-MSA web (English) reference : Vol. 5, Book 57, Hadith 91
  (deprecated numbering scheme)