Fa-innī waṣiftu fī hādhā al-kitāb min ʻilm al-awqāt bi-al-ḥisāb mā fīhi kifāyah wa-ghannāhu ʻan jamīʻ al-ālāt al-shuʻāʾīyah wa-al-ẓillīyah فإني وصفت في هذا الكتاب من علم الأوقات بالحساب ما فيه كفاية وغناه عن جميع الآلات الشعائية والظلية
Watermark: Anchor in circle. See Edward Heawood, Watermarks, Mainly of the 17th and 18th Centuries (Hilversum, 1950), nos. 1-8.Text rubricated; marginal notes in hand of copyist (?) and others.Date in colophon: taḥrīran fī awākhir shahr Dhī al-Qaʻdah ʻām sabʻah wa-ʻishrīn wa-alf min hijrat al-nabawī [i.e. November 1618].Pp. [5-19]. Bound with: [2] Aḥmad ibn Muḥammad ibn al-Bannāʾ, Abwāb yastadillu bi-hā ʻalá al-awqāt wa-al-sāʻāt wa-yuʻlam bi-hā awqāt al-ṣalāh, pp. [20-47]; [3] Abū al-Ḥasan ʻAlī ibn Muḥammad al-Qalaṣādī, Kashf al-asrār ʻan ʻilm ḥurūf al-ghubār, pp. [48-116].On timekeeping and the conversion of calendars.