Whoever offered Salat (prayer)in a silk Farruj (an outer garment opened at the back) and then took it off.

Sahih al-Bukhari · Book 8 · Hadith 375

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ يَزِيدَ، عَنْ أَبِي الْخَيْرِ، عَنْ عُقْبَةَ بْنِ عَامِرٍ، قَالَ أُهْدِيَ إِلَى النَّبِيِّ صلى الله عليه وسلم فَرُّوجُ حَرِيرٍ، فَلَبِسَهُ فَصَلَّى فِيهِ، ثُمَّ انْصَرَفَ فَنَزَعَهُ نَزْعًا شَدِيدًا كَالْكَارِهِ لَهُ وَقَالَ ‏"‏ لاَ يَنْبَغِي هَذَا لِلْمُتَّقِينَ ‏"‏‏.‏

Narrated `Uqba bin 'Amir: The Prophet (ﷺ) was given a silken Farruj [??] as a present. He wore it while praying. When he had finished his prayer, he took it off violently as if with a strong aversion to it and said, "It…