祈祷首先从整体上分为两种：义务性的和推荐性的。论述这一崇拜形式原则的讨论，限定为四类，即四个部分。第一部分讲述其义务性的确定及相关事项。第二部分讲述其三个条件的确定：义务条件、有效条件和完备条件。第三部分涵盖其行为和言语的确定，这些是它的基本要素（arkan）。第四部分讲述其延后履行，以及在出现瑕疵之后纠正形式的确定，因为所谓延后履行，是指一项行为若按时正确履行便不会被视为失效。

Prayer is divided initially, and as a whole, into two kinds: obligatory and recommended. The discussion covering the principles of this form of worship is confined to four categories, that is, four parts. Part One is about the identification of the obligation and matters related to it. Part Two is about the identification of its three conditions: the condition of obligation, condition of validity, and the condition of completion. Part Three covers the identification of its acts and words, and these are its essential elements (arkan). Part Four is about its delayed performance and the identification of forms of rectification following irregularity, for it is the delayed performance of an act that would not be deemed as lapsed had it been duly performed.