Sahih Muslim Book - 2, Hadith - 631

حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ حَدَّثَنَا أَبِي حَدَّثَنَا زَكَرِيَّاءُ عَنْ عَامِرٍ قَالَ أَخْبَرَنِي عُرْوَةُ بْنُ الْمُغِيرَةِ عَنْ أَبِيهِ قَالَ كُنْتُ مَعَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ذَاتَ لَيْلَةٍ فِي مَسِيرٍ فَقَالَ لِي أَمَعَكَ مَاءٌ قُلْتُ نَعَمْ فَنَزَلَ عَنْ رَاحِلَتِهِ فَمَشَى حَتَّى تَوَارَى فِي سَوَادِ اللَّيْلِ ثُمَّ جَاءَ فَأَفْرَغْتُ عَلَيْهِ مِنْ الْإِدَاوَةِ فَغَسَلَ وَجْهَهُ وَعَلَيْهِ جُبَّةٌ مِنْ صُوفٍ فَلَمْ يَسْتَطِعْ أَنْ يُخْرِجَ ذِرَاعَيْهِ مِنْهَا حَتَّى أَخْرَجَهُمَا مِنْ أَسْفَلِ الْجُبَّةِ فَغَسَلَ ذِرَاعَيْهِ وَمَسَحَ بِرَأْسِهِ ثُمَّ أَهْوَيْتُ لِأَنْزِعَ خُفَّيْهِ فَقَالَ دَعْهُمَا فَإِنِّي أَدْخَلْتُهُمَا طَاهِرَتَيْنِ وَمَسَحَ عَلَيْهِمَا.

'Urwah bin Al-Mughirah narrated that his father said: "I was with the Prophet (s.a.w) one night on. a journey and he said to me: 'Do you have any water with you?' I said: 'Yes.' He got down from his mount and walked until he disappeared in the blackness of the night. Then he came back and I poured water for him from that vessel and he washed his face. He was wearing a wool cloak and he could not bring his arms out of it, so he brought them out from beneath the cloak, then he washed his arms and wiped his head. Then I bent down to take off his Khuff and he said: 'Leave them, for I put them on while my two feet were Tahir (clean or pure),' and he wiped over them."