Sunan Abi Dawud 3754
سنن أبي داود#3754SahihNarrated Abdullah ibn Abbas: The Prophet (ﷺ) forbade that the food of two people who were rivalling on another should be eaten Abu Dawud said: Most of those who narrated it from Jarir did not mention the name of Ibn Abbas. Harun al-Nahwi mentioned Ibn 'Abbas in it, and Hammad bin Zaid did not mention Ibn 'Abbas
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih
In-book reference: 28:19