The Reason behind allowing Tayammum

Bismillah Hirahaman Niraheem

Narrated Aisha(RTA): We set out with Allahs Messenger(SWS) on one of his journeys till we reached Al-Bayda or Dhatul-Jaysh, where a necklace of mine was broken (and lost). Allah’s Messenger(SWS) stayed there to search for it, and so did the people along with him. There was no water source or ant water with them at that place, so the people went to Abu- Bakr As-Siddiq and said, “Don’t you see what Aisha has done? She has made Allah’s Messenger(SWS) and the people stay where there is no source of water and they have no water with them.” Abu Bakr came while Allah’s Messenger(SWS) was sleeping with his head on my thigh. He said, to me: “You have detained Allah’s Apostle and the people where there is no source of water and they have no water with them. So he admonished me and said what Allah wished him to say and hit me on my flank with his hand. Nothing prevented me from moving (because of pain) but the position of Allah’s Apostle on my thigh. Allah’s Apostle got up when dawn broke and there was no water. So Allah revealed the verses of Tayammum and they all performed Tayammum. Usayd bin Hudair said, “O the family of Abu Bakr! This is not the first blessing of yours.” Then the camel on which I was riding was caused to move from its place and the necklace was found beneath it.

Source : Sahih Bukhari Book No.7, Hadith No.330 and Sahih Muslim Book No.3, Hadith No.714