Sunan an-Nasa'i, Hadith 763 ⓘ
It was narrated from Abu Hurairah that someone asked the Messenger of Allah about praying in a single garment, and he said: "Does everyone of you have two garments?"
أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ سَائِلاً، سَأَلَ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنِ الصَّلاَةِ فِي الثَّوْبِ الْوَاحِدِ فَقَالَ " أَوَلِكُلِّكُمْ ثَوْبَانِ " .
also referenced under: Book 9, Hadith 22 (In-Book) & Volume 1, Book 9, Hadith 764 (DarusSalam)