أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ عَمْرٍو، عَنْ طَاوُسٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ أُمِرَ النَّبِيُّ صلى الله عليه وسلم أَنْ يَسْجُدَ عَلَى سَبْعَةِ أَعْضَاءٍ وَلاَ يَكُفَّ شَعْرَهُ وَلاَ ثِيَابَهُ .
It was narrated that Ibn 'Abbas said: "The Prophet (PBUH) was commanded to prostrate on seven parts of his body and not to tuck up his hair or his garment." Translation Not Available
Book Ref: Sunan An Nisai Book 12 Hadith 1093
Web Ref: Sunan An Nisai Vol 2 Book 12 Hadith 1094