ENOfficial
Narrated Abu Huraira: The Prophet (or 'Abul Qasim) said, "While a man was walking, clad in a two-piece garment and proud of himself with his hair well-combed, suddenly Allah made him sink into the earth and he will go on sinking into it till the Day of Resurrection.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا آدَمُ، حَدَّثَنَا شُعْبَةُ، حَدَّثَنَا مُحَمَّدُ بْنُ زِيَادٍ، قَالَ سَمِعْتُ أَبَا هُرَيْرَةَ، يَقُولُ قَالَ النَّبِيُّ ـ أَوْ قَالَ أَبُو الْقَاسِمِ ـ صلى الله عليه وسلم " بَيْنَمَا رَجُلٌ يَمْشِي فِي حُلَّةٍ، تُعْجِبُهُ نَفْسُهُ مُرَجِّلٌ جُمَّتَهُ، إِذْ خَسَفَ اللَّهُ بِهِ، فَهْوَ يَتَجَلَّلُ إِلَى يَوْمِ الْقِيَامَةِ ".
sunnah.com