What do Ibn al-Shatir and Ibn Tufail have in common?
Ibn Tufail Ibn Tufail (c. 1105 – 1185) (full Arabic name: أبو بكر محمد بن عبد الملك بن محمد بن طفيل القيسي الأندلسي "Abu Bakr Muhammad ibn Abd al-Malik ibn Muhammad ibn Tufail al-Qaisi al-Andalusi"; Latinized form: "Abubacer Aben Tofail"; Anglicized form: "Abubekar" or "Abu Jaafar Ebn Tophail") was a Moorish Andalusian Muslim polymath: a writer, novelist, Islamic philosopher, Islamic theologian, physician, astronomer, vizier, and court official.
Ahmad al-Wafi Aḥmad al-Wafī (proper name: ʿAbdullāh ibn Muḥammad ibn Ismāʿīl, Arabic: عبد اللّه بن محمد بن إسماعيل‎ ‎ ; born 766-828 CE/149-212 AH in Salamiyah, Syria; Imamate 809-828 CE/193-212 AH) is the eighth Isma'ili Imam. He was the son and successor of the seventh Imam, Muhammad ibn Isma'il. He was called "al-Wafi" "true to his word".