Musnad Ahmad 1153:902

'Affan narrated to us, he said: Hammad narrated to us, from Humayd, from 'Abdullah ibn Abi 'Utbah, from 'Aishah, that meat from charity was given to Barirah, and she gifted it to the Prophet, peace and blessings of Allah be upon him. It was said to him: "It is from the meat of charity." He said: "It is charity for her, and a gift for us."