عَنْ أَبِي سَعِيدٍ رَضِيَ اللَّهُ عَنْهُ قَالَ نَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ عَنِ الْجَرِّ أَنْ يُنْبَذَ فِيهِ وَعَنِ التَّمْرِ وَالْبُسْرِ وَعَنِ التَّمْرِ وَالزَّبِيبِ أَنْ يُخْلَطَ بَيْنَهُمَا
Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) forbade making nabidh in a pitcher, and from mixing dates and grapes to make nabidh, and from mixing unripe and ripe dates to make nabidh.