Sayyiduna Ammar bin Yasir (may Allah be pleased with both of them) narrates that the Messenger of Allah (peace and blessings of Allah be upon him) camped at a place called Dhat al-Jaish. Along with him was his honorable wife, Sayyidah Aisha (may Allah be pleased with her). During this time, her necklace made of 'Aqiq from Dhafar (a city near the coast of Yemen) broke and fell. Searching for it delayed the entire caravan, until the morning became bright and the people had no water. Sayyiduna Abu Bakr (may Allah be pleased with him) became upset with Sayyidah Aisha (may Allah be pleased with her) and said: "You have held up the entire caravan and they do not have (water for) ablution." Meanwhile, Allah the Exalted revealed to the Messenger (peace and blessings of Allah be upon him) the verse regarding the concession of purification with pure earth. All the Muslims stood with the Messenger of Allah (peace and blessings of Allah be upon him), struck their hands on the ground, raised their hands without taking any soil, and wiped their faces, their hands up to the shoulders, and from the inner side of the hands up to the armpits. Ibn Shihab (may Allah have mercy on him) said in his narration that people do not act upon this (wiping up to the shoulders and armpits).