مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2751
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas (رضي الله عنه) said: The Messenger of Allah (ﷺ) forbade gourds, green glazed pitchers, hollowed-out stumps and varnished jars, and he forbade mixing dates once they begin to ripen (balh) with unripe dates that have begun to take on a red or yellow colour (zahw). I said: O Ibn 'Abbas, what do you think about a man who makes his nabeedh in his green earthenware jar that is like a bottle, and he drinks it at night? He said: No, refrain from what the Messenger of Allah (ﷺ) forbade to you.
Musnad Ahmad 2771A saheeh hadeeth; this is a da'eef isnad]