Joseph says the Book of Abraham was "penned by hand of Father Abraham"; will translate more when possible.
Joseph Smith, Editorial, circa 1 March 1842, Draft, [1–2], The Joseph Smith Papers website, accessed August 11, 2021
In the penst [present] no. will be found the Commencmet of the Records discoverd in Egypt. some time since. as penend by the hand. of Father Abraham. which I shall contin[u]e to translate & publish as fast as possible till the whole is completed.— and as the saints have long been anxious to obtain a copy of these re[c]ords, those are now taking this times & Seasons. will confer a sp[e]cial favor on their brethren, who do not take the paper, by infor[m]ing them that. they can now obtain their hearts