The Messenger of Allah ﷺ forbade mixing two kinds of fruit when making a drink.
أن رسول الله ﷺ نهى عن الخليطين.
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Tabarani narrated it in Kabir (5/102), from Zakariya bin Yahya Saji, who said, Muhammad bin Abdul-Malik bin Abu Shawarib narrated to us, Umar bin Rudayh narrated to us, from Ata bin Abu Maymuna, from Anas, from Abu Talha, who said, then he mentioned it. Its chain is hasan, because of the disagreement over Umar bin Rudayh.Ibn Abu Hatim said, Abu Bakr bin Abu Khaythama informed us in what he wrote to me, he said, Ahmad bin Muhammad Saffar narrated to us, Abu Hafs Umar bin Rudayh narrated to us, he was considered trustworthy. He said, "I asked my father about him, and he said, 'A shaykh.'" It was said to him, "Ibn Main said, 'He is sound in hadith.'" He said, "Rather, he is daif in hadith."Ajli said, "A Basran, trustworthy." Ibn Hibban mentioned him in Thiqat and said, "A shaykh who narrates from Ata bin Abu Maymuna, Muhammad bin Abu Bakr Muqaddami narrated from him, straightforward in hadith." Ibn Shahin also mentioned him in Thiqat. Ibn Adi mentioned him in Kamil and said, "The trustworthy narrators contradict him in some of what he narrates."So the conclusion is that he is hasan in hadith so long as he does not contradict others. There is no contradiction in the text of this hadith, rather the sahih hadiths corroborate it.However, Ibn Adi narrated in Kamil (5/24), from Bakr bin Abdul-Wahhab, who said, Muhammad bin Abdul-Malik bin Abu Shawarib narrated to us, Umar bin Rudayh narrated to us, from Anas bin Malik, from Umm Salim and Abu Talha, that the two of them used to drink the steeped drink of raisins and unripe dates, mixing them together. He said, so it was said to him, "O Abu Talha, the Messenger of Allah ﷺ has forbidden this." He said, "The Messenger of Allah ﷺ only forbade it at a time of scarcity in that era, just as he forbade combining dates when eating."I say, if this is preserved as authentic from Abu Talha, then he said it based on his own reasoning, and the weight is given to his narration, not to his opinion.