وَحَدَّثَنَا ابْنُ الْمُثَنَّى، وَابْنُ، بَشَّارٍ قَالاَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ أَنَسِ بْنِ سِيرِينَ، قَالَ سَأَلْتُ ابْنَ عُمَرَ ‏.‏ بِمِثْلِهِ وَزَادَ وَيُوتِرُ بِرَكْعَةٍ مِنْ آخِرِ اللَّيْلِ ‏.‏ وَفِيهِ فَقَالَ بَهْ بَهْ إِنَّكَ لَضَخْمٌ ‏.‏

Anas b. Sirin reported: I asked Ibn 'Umar like this (as recorded in the previous hadith) and he made this addition:" And he (the Holy Prophet) made the end of the night prayer as odd number by one rak'ah." And there is also (this addition):" Stop, stop, you are bulky." Translation Not Available

Book Ref: Sahih Muslim Book 6 Hadith 1646
Web Ref:  Sahih Muslim Book 4 Hadith 749 h