It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both); he said: The Messenger of Allah (peace and blessings be upon him) ate the meat of a shoulder in the house of Duba'ah bint al-Harith (may Allah be pleased with her).
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10615