Messenger of Allah ﷺ said, "As for me, I pour water three times on my head." And he pointed with both his hands.  

قَالَ رَسُولُ اللَّهِ ﷺ أَمَّا أَنَا فَأُفِيضُ عَلَى رَأْسِي ثَلاَثًا وَأَشَارَ بِيَدَيْهِ كِلْتَيْهِمَا  

The Prophet ﷺ used to pour water three times on his head.  

كَانَ النَّبِيُّ ﷺ يُفْرِغُ عَلَى رَأْسِهِ ثَلاَثًا  

Jabir bin ʿAbdullah said to me, "Your cousin (Hasan bin Muhammad bin Al-Hanafiya) came to me and asked about the bath of Janaba. I replied, 'The Prophet ﷺ uses to take three handfuls of water, pour them on his head and then pour more water over his body.' Al-Hasan said to me, 'I am a hairy man.' I replied, 'The Prophet ﷺ had more hair than you'. "  

كَيْفَ الْغُسْلُ مِنَ الْجَنَابَةِ فَقُلْتُ كَانَ النَّبِيُّ ﷺ يَأْخُذُ ثَلاَثَةَ أَكُفٍّ وَيُفِيضُهَا عَلَى رَأْسِهِ ثُمَّ يُفِيضُ عَلَى سَائِرِ جَسَدِهِ فَقَالَ لِي الْحَسَنُ إِنِّي رَجُلٌ كَثِيرُ الشَّعَرِ فَقُلْتُ كَانَ النَّبِيُّ ﷺ أَكْثَرَ مِنْكَ شَعَرًا