Sunan an-Nasa'i, Book 48, Hadith 293 (In-Book) ⓘ
It was narrated that Ash'ath said: "I heard Sa'eed bin Jubair narrate from Ibn 'Abbas that the Prophet [SAW] said: 'Allah will not look at the Musbil (the one who lets his Izar come below the ankles).'"
أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ عُبَيْدِ بْنِ عَقِيلٍ، قَالَ حَدَّثَنِي جَدِّي، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ أَشْعَثَ، قَالَ سَمِعْتُ سَعِيدَ بْنَ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِنَّ اللَّهَ عَزَّ وَجَلَّ لاَ يَنْظُرُ إِلَى مُسْبِلِ الإِزَارِ " .
also referenced under: Hadith 5332 (Reference) & Volume 6, Book 48, Hadith 5334 (DarusSalam)