The Book of Prayer is one of the works of Imam Ibn Qayyim al-Jawziyyah. It is one of the important books that was classified as an answer to a question. In it, Ibn al-Qayyim presented the ruling on one who neglects prayer, and whether congregational prayer is a condition for the validity of prayer, and the ruling on one who performs prayer is like the pecking of a bird, and the value of the prayer of the Messenger of God, may God bless him and grant him peace, as stated in His interesting talk is about some of the secrets of prayer.