Ana tattaunawa mai zurfi game da ka'idojin wannan nau'in ibada (^ibadd) an rufe ta cikin babi biyar. Babi na 1 yana magana ne a kan dalilin wajabcinta — wanda ya wajaba a kansa da lokacin da ya wajaba; Babi na 2 yana bayani ne a kan gano ayyukanta; Babi na 3 yana bayani ne a kan gano abin da ake yin ta da shi, wato ruwa; Babi na 4 yana bayani ne a kan gano abubuwan da suke ɓata ta; kuma Babi na 5 yana bayani ne a kan gano abubuwan da za a iya yin ta da su.

A comprehensive discussion of the principles of this (type of) worship (^ibadd) is covered in five chapters. Chapter 1 relates to the evidence of its obligation— on whom it is obligatory and when; Chapter 2 is about the identification of its acts; Chapter 3 is about the identification of that with which it is performed, that is, water; Chapter 4 is about the identification of factors nullifying it; and Chapter 5 is about the identification of things with which it can be performed.

23 Najasa (ƙazanta) an raba ta gida biyu a wajen malamai na fiƙihu: ta zahiri (haƙiƙiya) da kuma ta shari'a ko ta hukunci (hukmiyya). Kalmar hadath ana amfani da ita ga ƙazantar shari'a ko ta hukunci, yayin da khabath kuwa ana amfani da ita ga ƙazantar zahiri. Hadath na iya zama ƙarami, wanda ake cire shi ta hanyar wanka na alwala, ko kuma babba (jima'i da haila), kuma ana cire shi ta hanyar wanka mai cikakke (ghusl). Haka kuma, najasa ta zahiri na iya zama mai nauyi (mughallaza) ko mai sauƙi (mukhaffafa).

23 Impurity (najdsa) is divided by the jurists into two kinds: actual (haqtqiya) and technical or legal (hukmiya). The term hadath is applied to legal or technical impurity, while khatyth to actual impurity. Hadath may be minor, which is removed through ablution, or it may be major (sexual defilement and menstruation) and is removed through bathing (gAws/). Similarly, actual najdsa may be heavy (mughallaza) or light (mvkhaffafa).

24 Kalmar wudu̇ kuma ana kiranta da alwala ƙarama (ṣughrā), yayin da kalmar ghusl kuma ana kiranta da alwala babba (kubrā).

24 The term wad# is also referred to as the minor (sughra) ablution, while the term ghusl is referred to as the major (kubrd) ablution.