حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ أَيُّوبَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَوْ قَالَ قَالَ عُمَرُ رضى الله عنه ‏"‏ إِذَا كَانَ لأَحَدِكُمْ ثَوْبَانِ فَلْيُصَلِّ فِيهِمَا فَإِنْ لَمْ يَكُنْ إِلاَّ ثَوْبٌ وَاحِدٌ فَلْيَتَّزِرْ بِهِ وَلاَ يَشْتَمِلِ اشْتِمَالَ الْيَهُودِ ‏"‏ ‏.‏

Ibn ‘Umar reported the Messenger of Allah (PBUH) as saying, or reported ‘Umar as saying (the narrator is doubtful): if one of you has two (piece of) cloth, he should pray in them; if he has a single (piece of) cloth, he should use it as a wrapper, and should not hang it upon the shoulder like the Jews. Translation Not Available

Book Ref: Sunan Abi Dawud Book 2 Hadith 635
Web Ref:  Sunan Abi Dawud Book 2 Hadith 635