The manuscript contains four texts. The first text is about the secret contained in executing ṣalāt. The second is about faith and Islam and starts with the division of faith in iman mujmal and iman mufaṣṣal. The text also explains the five pillars of Islam. The third text is about the knowledge of God. It contains the unicity of Allah and that he has no companion. The text also discusses the creation of the universe.
The fourth text is about Islamic theology (tawḥīd) written by Abū Yaḥyā Zakariyā al-Anṣārī (1420-1520 AD).
Colophon:
Tammat al-kitāb al-musammā Asrār al-ṣalāh fī yawm al-Rabi‘ fī waqt al-‘aṣr wa kātibuhu kālim wallāhu a‘lam.
Other notes:
The margins contain additional notes with explanations on the text. On folio 1r is a quote from the ayat of the surat Yusuf.