Musnad Abu Ya'la al-Mawsili 109:219

Abu Khaythama narrated to us, Yazid bin Harun narrated to us, al-Hajjaj bin Abi Zaynab informed us, Abu Sufyan Talha bin Nafi’ narrated to us, he said: I heard Jabir bin Abdullah say: I was sitting in my house, and the Messenger of Allah (peace be upon him) passed by me and gestured to me, so I stood up to him. He took my hand and we set off until he came to one of the chambers of his wives. He entered, then gave me permission, so I entered, and the veil was upon her. He said: "Is there any lunch?" They said: "Yes." Then three loaves of bread were brought and placed. The Messenger of Allah (peace be upon him) took a loaf and placed it before him, and he took another loaf and placed it before me. Then he took the third and broke it into two parts, and placed half of it before him and half of it before me. Then he said: "Is there any condiment?" They said: "No, except for some vinegar." He said: "Bring it, for it is an excellent condiment."