Sunan an Nasai
1096
Sahih+2

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 nor my garment: the forehead, the nose, the hands, the knees and the feet

SahihAbu Ghuddah
SahihAl-Albani