The conditionality of purity and Preventiveness of Impurity

One of the important and practical issues in Jurisprudence of Worship (Fiqh al-Ibadat) is the issue of the conditionality of purity and preventiveness impurity. Three approaches among Shia jurisprudents have been commonplace since the beginning, which are the following: Conditionality of purity from filth (Khubth) , preventive state of inexcusable impurity, and preventive state of known impurity. Those who believe in the first approach have three Ijtihadi reasons which are: Quranic verses, narrations of the Infallible Imams, and the consensus of the jurisprudents; but their Quranic and narrative reasons have argumentative issues, and the alleged consensus, if proved has oppositions. Believers in the second approach have also argued using the consensus of the jurisprudents and the narrations of the Infallibles Imams, but the consensus is connected to a documented narration (Ijma’ Madraki), and such consensus does not have the value of an iسndependent reason in the eyes of Shia Jurisprudents. The narrations of the Ahl al-Bayt however, only prove the preventive state of known impurity. Because the set of narrations existing on the issue which are: justifiable narrations, conditional narrations and the exceptional narrations, are only in line with the preventive state of known impurity, and do not imply the conditionality of purity from filth, and these narrations are so abundant that it is sufficient for the jurisprudent to assure the third approach.