Sahih Muslim 18 c
The Book of Faith
The command to believe in Allah and His Messenger (ﷺ) and the laws of Islam, calling people to it, asking about it, memorizing it and conveying it to those who have not heard the message
It is narrated on the authority of Abu Said al-Khudri that when the delegation of the tribe of Abdul-Qais came to the Prophet (ﷺ) of Allah (ﷺ), (its members) said: Messenger of Allah, may God enable us to lay down our lives for you, which beverage is good for us? He (the Prophet) said: (Not to speak of beverages, I would lay stress) that you should not drink in the wine jars. They said: Messenger of Allah, may God enable us to lay down our lives for you, do you know what al-naqir is? He (the Prophet) replied: Yes, it is a stump which you hollow out in the middle, and added: Do not use gourd or receptacle (for drink). Use water-skin the mouth of which is tied with a thong (for this purpose).