Sahih Muslim 329
Sahih Muslim · Book 3: The Book of Menstruation · It is recommended to pour water over the head, and elsewhere, three times
Jabir b. 'Abdullah reported:
وَ حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى ، حَدَّثَنَا عَبْدُ الْوَهَّابِ، - يَعْنِي الثَّقَفِيَّ - حَدَّثَنَا جَعْفَرٌ ، عَنْ أَبِيهِ ، عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا اغْتَسَلَ مِنْ جَنَابَةٍ صَبَّ عَلَى رَأْسِهِ ثَلاَثَ حَفَنَاتٍ مِنْ مَاءٍ . فَقَالَ لَهُ الْحَسَنُ بْنُ مُحَمَّدٍ إِنَّ شَعْرِي كَثِيرٌ . قَالَ جَابِرٌ فَقُلْتُ لَهُ يَا ابْنَ أَخِي كَانَ شَعْرُ رَسُولِ اللَّهِ صلى الله عليه وسلم أَكْثَرَ مِنْ شَعْرِكَ وَأَطْيَبَ .
When the Messenger of Allah (ﷺ) took a bath because of sexual intercourse, he poured three handfuls of water upon his head. Hasan b. Muhammad said to him (the narrator): My hair is thick. Upon this Jabir observed. I said to him: O son of my brother, the hair of the Messenger of Allah (ﷺ) was thicker than your hair and these were more fine (than yours).