It was narrated from Ibn ‘Abbas (رضي الله عنه) that

He disliked unripe dates (busr) to be soaked on their own and he said: The Messenger of Aliah (ﷺ) forbade muzza' (nabeedh made in green glazed pitchers or varnished jars) and he disliked unripe dates (busr) to be soaked on their own.