Sunan an-Nasa'i 1113
سنن النسائي#1113Sahihأَخْبَرَنَا حُمَيْدُ بْنُ مَسْعَدَةَ الْبَصْرِيُّ، عَنْ يَزِيدَ، - وَهُوَ ابْنُ زُرَيْعٍ - قَالَ حَدَّثَنَا شُعْبَةُ، وَرَوْحٌ، - يَعْنِي ابْنَ الْقَاسِمِ - عَنْ عَمْرِو بْنِ دِينَارٍ، عَنْ طَاوُسٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " أُمِرْتُ أَنْ أَسْجُدَ عَلَى سَبْعَةٍ وَلاَ أَكُفَّ شَعْرًا وَلاَ ثَوْبًا " .
It was narrated from Ibn 'Abbas that :The Messenger of Allah (ﷺ) said: "I have been commanded to prostrate on seven and not to tuck up my hair or garment
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 12:85