أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا يَحْيَى، عَنْ عُبَيْدِ اللَّهِ، قَالَ أَخْبَرَنِي نَافِعٌ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ عُمَرَ، قَالَ يَا رَسُولَ اللَّهِ أَيَنَامُ أَحَدُنَا وَهُوَ جُنُبٌ قَالَ " إِذَا تَوَضَّأَ " .
It was narrated from 'Abdullah bin 'Umar that 'Umar said: "O Messenger of Allah! May any one of us sleep while he is Junub?" He said: "When he performs Wudu'." Translation Not Available
Book Ref: Sunan An Nisai Book 1 Hadith 260
Web Ref: Sunan An Nisai Not Available