Literally, [?] can mean ‘trodden path’, ‘way’, ‘rule’, ‘manner of acting’ or ‘mode of life’. Originally it meant 'customary practice', it now indicates the specific actions or doings of the Prophet [?] himself verses the specific sayings ([?] or reports) Since the life of the Prophet is believed to be virtuous and exemplary, the acts of the Prophet provide the norms and set the model of human life and behavior. These virtuous acts are then converted into obligations of which total constitutes the [?].