– Tahur, Tahir and Najis.
– How each becomes another
– How we know there is a category of Tahir water as majority scholars said and a look at difference of opinion
– Principle to use when in doubt of anything, especially of Taharah (what great scholars said about this)
– Few more points
http://soundcloud.com/hikmahway/taharah-fiqh-diploma-class-04