Fardh
Fardh (Arabic: فرض), in Islamic jurisprudence, refers to an obligatory act. Failure to perform it constitutes a sin. Fardh is generally synonymous with “wajib“, although the Hanafi school of thought make a distinction between the two with the view that something that is fardh is proven by means of definitive evidence, whereas something that is wajib is proven on the basis of ambiguous evidence where there is possibly more than one meaning.