Musannaf Ibn Abi Shaybah 58 — How many times ablution is performed

It is narrated from Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both) that once a man asked the Prophet (peace and blessings be upon him) about the method of ablution. He called for water and washed the limbs three times each. Then he said: "This is the way of ablution. Whoever falls short of it or adds to it has done wrong and transgressed."