سُنَنُ ابْنِ مَاجَهْ
Sunan Ibn Majah 412
The Book of Purification and its Sunnah
Concerning ablution washing (each limb) once
حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا رِشْدِينُ بْنُ سَعْدٍ، أَنْبَأَنَا الضَّحَّاكُ بْنُ شُرَحْبِيلَ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ أَبِيهِ، عَنْ عُمَرَ، قَالَ رَأَيْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ فِي غَزْوَةِ تَبُوكَ تَوَضَّأَ وَاحِدَةً وَاحِدَةً .
It was narrated that 'Umar said: "I saw the Messenger of Allah during the campaign of Tabuk performing ablution, washing each part once."
Sunan Ibn Majah, 412Da'if (Darussalam)