Musannaf Ibn Abi Shayba 1:606

Ibn Fudayl narrated to us, from 'Amarah ibn al-Qa'qa', from Abu Zur'ah, who said: I entered the house of Marwan with Abu Hurayrah. He called for water for ablution and performed ablution. When he washed his forearms, he went beyond the elbows. When he washed his feet, he went beyond the ankles up to the shins. I said, "What is this?" He said, "This is the extent of the adornment (al-hilyah)."