It has been narrated on the authority of Abu Ishaq, who heard Bars bin Azib (RA) say: When the Messenger of Allah ﷺ made peace with the people of Hudaibiya, Ali drew up the agreement between them, and so he wrote: Muhammad, the Messenger of Allah. (This is followed by the same wording as we have in the previous tradition except the omission of the words: This is what he has settled.)