We set out with the Prophet (ﷺ) on one of his journeys till we reached Al-Baidâ ' or Dhâtul-Jaish, a necklace of mine was broken (and lost). Allâh's Messenger (ﷺ) stayed there to search for it, and so did the people along with him. There was no water at that place, so the people went to Bakr and said, "Don't you see what 'Aisha has done? She has made Allâh's Messenger (ﷺ) and the people stay where there is no water and they have no water with them." Bakr came while Allâh's Messenger (ﷺ) was sleeping with his head on my thigh, he said to me: " You have detained Allâh's Messenger (ﷺ) and the people where there is no water and they have no water with them." So he admonished me and said what Allâh 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 Allâh's Messenger (ﷺ) on my thigh. Allâh's Messenger (ﷺ) got up when dawn broke and there was no water. So Allâh revealed the Divine Verses of Tayammum. So they all performed Tayammum. Usaid bin Huḍair said, O the family of 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. [1:330-0.B.]