حَدَّثَنَا يَحْيَى بْنُ خِذَامٍ، حَدَّثَنَا صَفْوَانُ بْنُ عِيسَى، أَنْبَأَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ، قَالَ لَمَّا غَسَّلَ النَّبِيَّ ـ صلى الله عليه وسلم ـ ذَهَبَ يَلْتَمِسُ مِنْهُ مَا يَلْتَمِسُ مِنَ الْمَيِّتِ فَلَمْ يَجِدْهُ ‏.‏ فَقَالَ بِأَبِي الطَّيِّبُ طِبْتَ حَيًّا وَطِبْتَ مَيِّتًا ‏.‏

It wasnarrated that ‘Ali bin Abu Talib said that when he washed theMessenger of Allah (PBUH) he looked for what which is usually lookedfor on the deceased (i.e., dirt), and he found none. He said: “Maymyfather be sacrificed for you, you are pure; you were pure in lifeandyou are pure in death.” Translation Not Available

Book Ref: Sunan Ibn Majah Book 6 Hadith 1467
Web Ref:  Sunan Ibn Majah Vol 1 Book 6 Hadith 1467