Musannaf Ibn Abi Shaybah 1694 — How tayammum is performed

Ibn Abza narrates from his father that Sayyiduna Ammar said to Sayyiduna Umar (may Allah be pleased with them both): "Do you not remember the day when, at such-and-such a time, we became junub and found no water, so we rolled about in the dust? When we came to the Prophet (peace and blessings be upon him) and told him the whole matter, he (peace and blessings be upon him) said: 'This much would have been enough for you.'" Saying this, the narrator al-A'mash struck both his hands on the dust, then blew on them, then wiped them over his face and his palms.