مُسْنَدِ عُمَرَ بْنِ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ
2  
Musnad `Umar b. al-Khattab (ra)
Musnad Ahmad 343
It was narrated that ʼUmar said:
I saw the Messenger of Allah (ﷺ) doing wudoo after relieving himself, and wiping over his leather slippers (khuff), then praying.
حَدَّثَنَا عَلِيُّ بْنُ عَاصِمٍ، أَنْبَأَنَا يَزِيدُ بْنُ أَبِي زِيَادٍ، عَنْ عَاصِمِ بْنِ عُبَيْدِ اللَّهِ، عَنْ أَبِيهِ، أَوْ جَدِّهِ الشَّكُّ مِنْ يَزِيدَ عَنْ عُمَرَ، رَضِيَ اللَّهُ عَنْهُ قَالَ رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تَوَضَّأَ بَعْدَ الْحَدَثِ وَمَسَحَ عَلَى خُفَّيْهِ وَصَلَّى‏.‏
Grade: Sahih lighairihi, and its isnad is da'eef because of the weakness of Yazeed bin Ziyad and Asim bin 'Ubaidullah] . (Darussalam)
Reference : Musnad Ahmad 343
In-book reference : Book 2, Hadith 249