Musannaf Ibn Abi Shaybah

Hazrat Yazid says that I saw Abdur Rahman bin Abi Laila that during ablution he rinsed his mouth and put water in his nose once or twice, then washed his face three times, then washed his arms three times each, then wiped his head, then washed his feet three times each. I did not see him combing through his beard with his fingers. Then he said that I saw Hazrat Ali (may Allah be pleased with him) performing ablution in this manner.