Sunan Abu Dawud
145
Sahih+2

Narrated Anas ibn Malik: Whenever the Messenger of Allah (ﷺ) performed ablution, he took a handful of water, and, putting it under his chin, made it go through his beard, saying: Thus did my Lord command me

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid