Sahih al-Bukhari 359
Sahih al-Bukhari · Book 8: Prayers (Salat) · If someone offers Salat (prayer) wrapped in a single garment, he should cross its corners round his shoulders
Narrated Abu Huraira:
حَدَّثَنَا أَبُو عَاصِمٍ ، عَنْ مَالِكٍ ، عَنْ أَبِي الزِّنَادِ ، عَنْ عَبْدِ الرَّحْمَنِ الأَعْرَجِ ، عَنْ أَبِي هُرَيْرَةَ ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " لاَ يُصَلِّي أَحَدُكُمْ فِي الثَّوْبِ الْوَاحِدِ، لَيْسَ عَلَى عَاتِقَيْهِ شَىْءٌ " .
The Prophet (ﷺ) said, "None of you should offer prayer in a single garment that does not cover the shoulders."