, Reported by Aisha (r.a.a) recorded in Muslim, that our beloved prophet (saw) said : Aisha the wife of prophet (s.a.w) borrowed a necklace from her sister Asma (r.a.a) then it went missing during an expedition in which she accompanied the prophet . He, sent some of his companions to look for it, the time for salat became due while they were in the desert so they offered the salat without wudu. When they returned to the prophet (saw) they reported it to him, as it bothered them. It was then that the verse of Tayammum was revealed. Usaid bin Hudair (r.a.a) said to Aisha (r.a.a.) "May Allah reward you, by Allah no incident occurs to you, except that Allah makes for you a way out of it and puts barakat in it for the Muslims ".