عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ أَنَّ عُمَرَ سَأَلَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: هَلْ يَنَامُ أَحَدُنَا وَهُوَ جُنُبٌ؟ فَقَالَ: ((نَعَمْ وَيَتَوَضَّأُ وَضُوءَهُ لِلصَّلَاةِ)) قَالَ نَافِعٌ: فَكَانَ ابْنُ عُمَرَ إِذَا أَرَادَ أَنْ يَفْعَلَ شَيْئًا مِنْ ذَلِكَ تَوَضَّأَ وَضُوءَهُ لِلصَّلَاةِ مَا خَلَا رِجْلَيْهِ
Nafi’ reports: It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with him) that Sayyiduna Umar (may Allah be pleased with him) asked the Noble Prophet (peace and blessings be upon him): Can a person sleep in a state of major ritual impurity (janabah)? The Prophet (peace and blessings be upon him) replied: Yes, but he should perform ablution (wudu) as for prayer. Whenever Sayyiduna Ibn Umar (may Allah be pleased with him) intended to do so, he would perform ablution as for prayer, except that he would not wash his feet.