The verse tathir is one of the most debatable Quranic verses among fariqain commentators. From one hand, Shiites, on the basis of frequently mentioned traditions from the Prophet, have viewed objective samples of Ahl Ul-Bayt as limited to the Prophet (s), Ali, Fatemah, Hasan and Hosain (a). Aloosi, one Sunni commentator, however, on the basis of texture of the verses and some traditions narrated from Prophet, has increased the number of Ahl Ul-Bayt as including Prophet`s wives, descendants, family members and even Sufi leaders. In the paper, considering the grounds needed for using context in comment and studying Prophet`s traditions from Sunni scholars` view, has refuted aloosi`s view and proved that of Shiites on the basis of those traditions acceptable for Sunni scholars.