I heard the Prophet ﷺ say in the year of the Conquest, while he was in Mecca, "Allah and His Messenger have forbidden the sale of wine, carrion, and pigs."Someone asked, "Messenger of Allah, what about the fat of carrion? It is used to grease ships, to coat hides, and people use it to fuel their lamps."He replied, "No, it is forbidden."Then he said, "May Allah destroy the Jews. When Allah forbade them the fats, they melted them down, sold the result, and consumed its price."
حدثنا عتاب حدثنا عبد الله أخبرنا أسامة بن زيد
سمعت النبي ﷺ عام الفتح وهو بمكة يقول إن الله ورسوله حرم بيع الخمر والميتة والخنزير فقيل يا رسول الله أرأيت شحوم الميتة فإنه يدهن بها السفن ويدهن بها الجلود ويستصبح بها الناس فقال لا هي حرام ثم قال قاتل الله اليهود إن الله لما حرم عليهم الشحوم جملوها ثم باعوها وأكلوا أثمانها
Its isnad is sahih. Haythami mentioned it in Majma al-Zawaid 4:90-91, and said, "Ahmad narrated it," then he mentioned another wording which he attributed to Tabarani in Al-Awsat, then said, "The men of Ahmad are trustworthy." But what is in Al-Zawaid is, "for he greases hides with it," with "he greases ships with it" omitted. It also contains, "so they ate its price." See what has preceded in Musnad Umar no. 170, and in Musnad Ibn Abbas 2221, 2678, 2964, and in Musnad Abdullah bin Umar 5982. "Jamalūhā," with a fatha on the jim and an unstressed mim, means, "they melted it down and extracted its fat."