Hadith 41

Bulugh al-Maram

Book 1: The Book of Purification

Chapter 4

Ablution (Wudu)

باب الوضوء

Bulugh al-Maram 35
وَفِي لَفْظٍ: { بَدَأَ بِمُقَدَّمِ رَأْسِهِ, حَتَّى ذَهَبَ بِهِمَا إِلَى قَفَاهُ, ثُمَّ رَدَّهُمَا إِلَى اَلْمَكَانِ اَلَّذِي بَدَأَ مِنْهُ } 1‏ .‏
In another narration by al-Bukhari and Muslim:

"He started with the front of his head, moved them (his hands) to the nape of his neck, and then returned them to the place where he started."