Bulugh al-Maram, Book 16, Hadith 1493 (English) ⓘ
Abu Hurairah (RAA) narrated that the Messenger of Allah said: “None of you should walk with one shoe, but should either wear them both or take them both off” Agreed upon.
وَعَنْهُ قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ لَا يَمْشِ أَحَدُكُمْ فِي نَعْلٍ وَاحِدَةٍ, وَلْيُنْعِلْهُمَا جَمِيعًا, أَوْ لِيَخْلَعْهُمَا جَمِيعًا } مُتَّفَقٌ عَلَيْهِمَا. (1909). 1 - صحيح. رواه البخاري (5855)، ومسلم (2097) (68).
also referenced under: Book 16, Hadith 1450 (In-Book)