Sunan Abu Dawud
3702
Sahih+3

Jabir b. ‘Abd Allah said:Dates were steeped for the Messenger of Allah (ﷺ) in a skin, but when they could not find a skin, they were steeped for him in a small stone vessel

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid