Rabbi Avraham bar Shmuel Zakut (from those who left Spain) was a great sage in the wisdom of astronomy and studied this wisdom in their cathedra in Saragossa. And to him all the peoples would seek, and his counsel according to the sight of the stars was like the counsel of Achitophel. And he authored Sefer HaYuchsin [(Shomer HaDat, letter 62, paragraph 72). And Tzeda wrote] it appears that he authored his book around the year 5262, [he authored Sefer Ben Arbaim LeBinah on astronomy, manuscript, and Matuk LeNefesh on the matter of the soul and the garden of Eden and Gihenna, these are 367, and Sefer Techunat Zechut on astronomy, (Rabbi Avraham HaLevi Gieso authored Sefer Mashrei Kitrin, Shomer HaDat, letter 47, section 2)]: