The Book of Purification and its Sunnah
1/39. Chapter:
A man who asks for help with his ablution and water is poured on him
Sunan Ibn Majah
حَدَّثَنَا بِشْرُ بْنُ آدَمَ، حَدَّثَنَا زَيْدُ بْنُ الْحُبَابِ، حَدَّثَنِي الْوَلِيدُ بْنُ عُقْبَةَ، حَدَّثَنِي حُذَيْفَةُ بْنُ أَبِي حُذَيْفَةَ الأَزْدِيُّ، عَنْ صَفْوَانَ بْنِ عَسَّالٍ، قَالَ صَبَبْتُ عَلَى النَّبِيِّ ـ صلى الله عليه وسلم ـ الْمَاءَ فِي السَّفَرِ وَالْحَضَرِ فِي الْوُضُوءِ .
It was narrated that Safwan bin 'Assal said: "I poured water for the Prophet on journeys and as a resident, when he performed ablution."
Reference : Sunan Ibn Majah 391In-book reference : Book 1, Hadith 125English translation : Vol. 1, Book 1, Hadith 391