Taharah in Bada'i as-Sana'i: Al-Kasani's Systematic Approach

Al-Kasani's treatment of taharah in Bada'i as-Sana'i exemplifies the work's distinctive systematic organization. Rather than presenting purification law in the organic sequence of earlier manuals, al-Kasani explicitly identifies the conditions (shurut) for valid purification, the pillars (arkan) of each ablution type, the invalidating factors (nawaqid), and the subsidiary questions (furu') that depend on these foundations.

For wudu', al-Kasani identifies the conditions that must be present for wudu' to be valid (the water must be pure and purifying, the person must be Muslim, the time of prayer must have entered for obligatory acts, etc.) separately from the obligatory elements of wudu' itself. This analytical separation — conditions vs. obligatory elements — is characteristic of al-Kasani's systematic approach and helps students understand why certain things must be present before wudu' begins rather than being parts of the wudu' itself.

The pillars (arkan) of wudu' in Bada'i as-Sana'i are presented as the four Hanafi fara'id: washing the face, washing the arms, wiping part of the head, washing the feet. Al-Kasani explains that intention is not a pillar in the Hanafi school — it is a condition for the prayer that follows, not for the wudu' that enables it. This distinguishes the Hanafi approach from the Shafi'i and Maliki schools, where intention is an obligatory element of wudu' itself.

The invalidating factors (nawaqid) of wudu' are systematically listed in Bada'i as-Sana'i: discharge from the front or back passages, loss of consciousness (sleep, fainting, intoxication), touching the private parts with the inner surface of the hand (in some Hanafi positions), ghusl-requiring conditions (sexual intercourse, ejaculation, menstruation, postpartum bleeding), and apostasy (in the Hanafi view that apostasy nullifies all prior acts of worship). Al-Kasani's systematic listing of these invalidating factors, with their evidential basis, gives students a complete reference for determining when wudu' has been broken.

For ghusl, al-Kasani identifies the obligatory elements: intention, rinsing the mouth, rinsing the nostrils, and washing the entire body. He explains that the Hanafi school's inclusion of mouth and nose rinsing as obligatory elements of ghusl — unlike the Shafi'i school's treatment of them as recommended — is grounded in the prophetic descriptions of complete ghusl as including these acts and in the principle that the inside of the body's accessible openings is part of the 'body' that must be purified.

Tayammum in Bada'i as-Sana'i is presented with the same systematic organization: conditions (water unavailability or harmful use), obligatory elements (intention, one strike for the face, one strike for the arms to the elbows), and invalidating factors (entry of the prayer time's end, water becoming available). The Hanafi extension of tayammum wiping to the elbows — not merely the wrists as in other schools — is presented with the evidential basis in the prophetic descriptions of tayammum that mention the arms.

Al-Kasani's systematic treatment of taharah in Bada'i as-Sana'i provides students with a clear organizational framework that facilitates both learning and application, demonstrating why the work remains a valued educational reference in Hanafi institutions.