كتاب الطهارة
2
The Book of Purification
(13)
Chapter: Adornment (in the hereafter) will reach as far as the wudu’ reached
(13)
باب تَبْلُغُ الْحِلْيَةُ حَيْث يَبْلُغُ الْوَضُوءُ ‏‏

Abu Hazim reported:

I was (standing) behind Abu Huraira and he was performing the ablution for prayer. He extended the (washing) of his hand that it went up to his armpit. I said to him: O Abu Huraira, what is this ablution? He said: O of the tribe of Faruukh, you are here; if I knew that you were here, I would have never performed ablution like this; I have heard my Friend (ﷺ) say. In a believer adornment would reach the places where ablution reaches.
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا خَلَفٌ، - يَعْنِي ابْنَ خَلِيفَةَ - عَنْ أَبِي مَالِكٍ الأَشْجَعِيَّ، عَنْ أَبِي حَازِمٍ، قَالَ كُنْتُ خَلْفَ أَبِي هُرَيْرَةَ وَهُوَ يَتَوَضَّأُ لِلصَّلاَةِ فَكَانَ يَمُدُّ يَدَهُ حَتَّى تَبْلُغَ إِبْطَهُ فَقُلْتُ لَهُ يَا أَبَا هُرَيْرَةَ مَا هَذَا الْوُضُوءُ فَقَالَ يَا بَنِي فَرُّوخَ أَنْتُمْ هَا هُنَا لَوْ عَلِمْتُ أَنَّكُمْ هَا هُنَا مَا تَوَضَّأْتُ هَذَا الْوُضُوءَ سَمِعْتُ خَلِيلِي صلى الله عليه وسلم يَقُولُ ‏ "‏ تَبْلُغُ الْحِلْيَةُ مِنَ الْمُؤْمِنِ حَيْثُ يَبْلُغُ الْوَضُوءُ ‏"‏ ‏.‏
Reference : Sahih Muslim 250
In-book reference : Book 2, Hadith 53
USC-MSA web (English) reference : Book 2, Hadith 484
  (deprecated numbering scheme)