Abu Hurairah (May Allah be pleased with him) reported that the Messenger of Allah (PBUH) said, "Shall I not tell you something by which Allah effaces the sins and elevates ranks (in Jannah)?'' The Companions said; "Certainly, O Messenger of Allah.'' He (PBUH) said, "Performing the Wudu' thoroughly in spite of difficult circumstances, walking with more paces to the mosque, and waiting for the next As-Salat (the prayer) after observing Salat; and that is Ar-Ribat, and that is Ar-Ribat.'' [Muslim]. Commentary: Hardship and unpleasantness here stand for the uneasiness that one feels while performing Wudu' in severe cold. Ar-Ribat means watching the frontiers or battlefront to check the invasion of the enemy. To wait for the next Salat after offering a Salat is regarded as Ribat for the reason that by so doing, a person who is particular in offering Salat keeps himself constantly engaged in the obedience and worship of Allah to keep Satan away from him.
