كتاب اللباس والزينة
37  
The Book of Clothes and Adornment
(10)
Chapter: The Prohibition Against Strutting With Pride, And Being Amazed With One's Clothes
(10)
باب تَحْرِيمِ التَّبَخْتُرِ فِي الْمَشْىِ مَعَ إِعْجَابِهِ بِثِيَابِهِ ‏‏
Sahih Muslim 2088 c

Abu Huraira reported Allah's Messenger (ﷺ) as saying:

There was a person who walked with pride because of his (fine) mantles and well pleased with his personality. Allah made him sink in the earth and he would go on sinking in that until the Day of Resurrection.
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا الْمُغِيرَةُ، - يَعْنِي الْحِزَامِيَّ - عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ بَيْنَمَا رَجُلٌ يَتَبَخْتَرُ يَمْشِي فِي بُرْدَيْهِ قَدْ أَعْجَبَتْهُ نَفْسُهُ فَخَسَفَ اللَّهُ بِهِ الأَرْضَ فَهُوَ يَتَجَلْجَلُ فِيهَا إِلَى يَوْمِ الْقِيَامَةِ ‏"‏ ‏.‏
Reference : Sahih Muslim 2088c
In-book reference : Book 37, Hadith 82
USC-MSA web (English) reference : Book 24, Hadith 5205
  (deprecated numbering scheme)