(58) باب النَّهْىِ عَنْ كَفِّ الثِّيَابِ، فِي السُّجُودِ
It was narrated that Ibn 'Abbas said:
"The Prophet (ﷺ) was commanded to prostrate on seven bones and was forbidden to tuck up his hair and garment."
Reference: Sunan an-Nasa'i 1115
In-book reference: Book 12, Hadith 87
English translation: Vol. 2, Book 12, Hadith 1116