Musannaf Ibn Abi Shaybah 537 — Those who did not perform ablution

Ibrahim said: Once Alqamah and al-Aswad were both going to the mosque with Sayyiduna Ibn Mas'ud (may Allah be pleased with him). Meanwhile a bowl of tharid was brought, so the three of them sat down in one place and ate. Then water was called for; they rinsed their mouths and cleaned the grease of the meat from their hands, then entered the mosque and offered the prayer.