Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:16157Yaḥyá b. Saʿīd > Shuʿbah > al-Nuʿmān b. Sālim > Ibn Abū Aws from his father

[Machine] "He used to bring his sandals while he was praying, then he put them on and said, 'I have seen the Messenger of Allah ﷺ praying in his sandals.'"  

أحمد:١٦١٥٧حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ شُعْبَةَ عَنِ النُّعْمَانِ بْنِ سَالِمٍ عَنِ ابْنِ أَبِي أَوْسٍ عَنْ جَدِّهِ

أَنَّهُ كَانَ يُؤْتَى بِنَعْلَيْهِ وَهُوَ يُصَلِّي فَيَلْبَسُهُمَا وَيَقُولُ إِنِّي رَأَيْتُ رَسُولَ اللهِ ﷺ يُصَلِّي فِي نَعْلَيْهِ