Rasulullah berwudhu sekali sekali
Imam Ahmad : 25782حَدَّثَنَا يُونُسُ قَالَ حَدَّثَنَا لَيْثٌ عَنْ مُحَمَّدِ بْنِ عَجْلَانَ عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدِ بْنِ عَقِيلِ بْنِ أَبِي طَالِبٍ عَنِ الرُّبَيِّعِ بِنْتِ مُعَوِّذِ ابْنِ عَفْرَاءَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تَوَضَّأَ عِنْدَهَا فَمَسَحَ الرَّأْسَ كُلَّهُ مِنْ فَوْقِ الشَّعْرِ كُلِّ نَاحِيَةٍ لِمُنْصَبِّ الشَّعْرِ لَا يُحَرِّكُ الشَّعْرَ عَنْ هَيْئَتِهِ
Narrated to us [Yunus] said, has narrated to us [Laith] from [Muhammad bin Ajlan] from [Abdullah bin Muhammad bin Aqil bin Abu Thalib] from [Ar Rubayi' binti Mu'awidz bin 'Afra'] that the Messenger of Allah Peace be upon him performed ablution beside him, then he washed his head all over from the top of his hair to the gaps in his hair, he did not change the position of his hair from its original position.
Hadith Corroboration :
Imam Ahmad : 144, 146, 550, 831, 966, 1296, 1968, 2291, 2913, 15106, 15845, 15869, 17381, 25782, 25786
Imam Bukhari : 137, 153
Imam Abu Dawud : 102, 104, 106, 109, 110, 111, 113, 118, 119, 120
Imam Tirmidzi : 32, 40
Imam Nasa'i : 79, 100, 101
Imam Ibnu Majah : 397, 399, 405, 406, 429, 430, 431, 437, 438, 439
Imam Darimi : 693, 705