Rasulullah berwudhu sekali sekali
Imam Ahmad : 25786حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا لَيْثٌ عَنِ ابْنِ عَجْلَانَ عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدِ بْنِ عَقِيلٍ عَنِ الرُّبَيِّعِ بِنْتِ مُعَوِّذٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تَوَضَّأَ عِنْدَهَا فَمَسَحَ بِرَأْسِهِ الرَّأْسِ كُلِّهِ مِنْ وَرَاءِ الشَّعْرِ كُلَّ نَاحِيَةٍ لِمُنْصَبِّ الشَّعْرِ لَا يُحَرِّكُ الشَّعْرَ عَنْ هَيْئَتِهِ
Narrated to us [Qutaibah bin Sa'id] said, Narrated to us [Laith] from [Ibn Ajlan] from [Abdullah bin Muhammad bin Aqil] from [Ar Rubayi' binti Mu'awidz] that the Messenger of Allah Peace be upon him performed ablution beside him, then he washed his entire head, from the back of the hair to the sides of the hair, while he did not move the position of his hair.
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