"When the Messenger of Allah ( ﷺ0 performed Ghusl from Janabah, he would wash his hands, then perform Wudu' as for prayer, then run his fingers through his hair until he was sure the water had reached the scalp, then he would pour water over his head three times, then wash the rest of his body."  

كَانَ رَسُولُ اللَّهِ ﷺ إِذَا اغْتَسَلَ مِنَ الْجَنَابَةِ غَسَلَ يَدَيْهِ ثُمَّ تَوَضَّأَ وُضُوءَهُ لِلصَّلاَةِ ثُمَّ يُخَلِّلُ رَأْسَهُ بِأَصَابِعِهِ حَتَّى إِذَا خُيِّلَ إِلَيْهِ أَنَّهُ قَدِ اسْتَبْرَأَ الْبَشَرَةَ غَرَفَ عَلَى رَأْسِهِ ثَلاَثًا ثُمَّ غَسَلَ سَائِرَ جَسَدِهِ  

"When the Messenger of Allah ﷺ performed Ghusl from Janabah, he would call for something like a vessel used for milking a she-camel, then he would take (some water) in his hand and start with the right side of his head, then the left, then take (some water) in his hands and start pouring it on his head."  

كَانَ رَسُولُ اللَّهِ ﷺ إِذَا اغْتَسَلَ مِنَ الْجَنَابَةِ دَعَا بِشَىْءٍ نَحْوِ الْحِلاَبِ فَأَخَذَ بِكَفِّهِ بَدَأَ بِشِقِّ رَأْسِهِ الأَيْمَنِ ثُمَّ الأَيْسَرِ ثُمَّ أَخَذَ بِكَفَّيْهِ فَقَالَ بِهِمَا عَلَى رَأْسِهِ