سُنَنُ ابْنِ مَاجَهْ
Sunan Ibn Majah 416
The Book of Purification and its Sunnah
Performing ablution by washing three times
حَدَّثَنَا سُفْيَانُ بْنُ وَكِيعٍ، حَدَّثَنَا عِيسَى بْنُ يُونُسَ، عَنْ فَائِدٍ أَبِي الْوَرْقَاءِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي أَوْفَى، قَالَ رَأَيْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ تَوَضَّأَ ثَلاَثًا ثَلاَثًا وَمَسَحَ رَأْسَهُ مَرَّةً .
It was narrated that 'Abdullah bin Awfa said: "I saw the Messenger of Allah performing ablution, washing each part three times, and wiping his head once."
Sunan Ibn Majah, 416Sahih (Darussalam)