Musnad Abu Ya'la al-Mawsili 117:163

Abu Bakr ibn Zanjawayh narrated to us, Abd al-Razzaq narrated to us, Ma'mar informed us, from Thabit, from Anas, who said: It reached Safiyyah that Hafsah had said to her, "Daughter of a Jew." The Prophet, peace and blessings of Allah be upon him, entered upon her while she was weeping. He said, "What makes you weep?" She said, "Hafsah said to me that I am the daughter of a Jew." The Prophet, peace and blessings of Allah be upon him, said, "Indeed, you are the daughter of a prophet, and your uncle is a prophet, and you are under a prophet. So, by what does she boast over you?" Then he said, "Fear Allah, O Hafsah."