Sahih Muslim 518
Sahih Muslim · Book 4: The Book of Prayers · Praying In A Single Garment, And How It Should Be Worn
Abu Zubair reported that he saw Jabir b. 'Abdullah praying in a single garment crossing Its ends even though he had the garments, and Jabir said:
حَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى ، حَدَّثَنَا ابْنُ وَهْبٍ ، أَخْبَرَنِي عَمْرٌو ، أَنَّ أَبَا الزُّبَيْرِ الْمَكِّيَّ ، حَدَّثَهُ أَنَّهُ، رَأَى جَابِرَ بْنَ عَبْدِ اللَّهِ يُصَلِّي فِي ثَوْبٍ مُتَوَشِّحًا بِهِ وَعِنْدَهُ ثِيَابُهُ . وَقَالَ جَابِرٌ إِنَّهُ رَأَى رَسُولَ اللَّهِ صلى الله عليه وسلم يَصْنَعُ ذَلِكَ .
He saw the Messenger of Allah (ﷺ) doing like this.