Qawl fī īḍā ḥ al-wajh alladhī dhakara Baṭlamyūs anna bihī istakhraja min taqaddamahū masīrāt al-qamar al-dawriyya wa-hiya al-mustawiyya = Risāla fī ḥarakat al-nayyirayn (Istanbul: Topkapi: Hazine, under second title)