Sahih al-Bukhari 3460
صحيح البخاري#3460SahihNarrated Ibn `Abbas:I heard `Umar saying, "May Allah Curse so-and-so! Doesn't he know that the Prophet (ﷺ) said, 'May Allah curse the Jews for, though they were forbidden (to eat) fat, they liquefied it and sold it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 60:127