(5) باب كَرَاهَةِ انْتِبَاذِ التَّمْرِ وَالزَّبِيبِ مَخْلُوطَيْنِ
Abu Qatada reported Allah's Messenger (ﷺ) as saying:
Do not prepare Nabidh by mixing nearly ripe and fresh dates and do not prepare Nabidh by mixing together fresh dates and grapes, but prepare Nabidh out of each (one of them) separately. Yahya stated that he had met 'Abdullah b. Abu Qatada and he narrated it on the authority of his father that Allah's Apostle (ﷺ) said this.
Reference: Sahih Muslim 1988 c
In-book reference: Book 36, Hadith 30
USC-MSA web (English) reference(deprecated numbering scheme): Book 23, Hadith 4906