As for the report narrated by al-Husayn ibn Saʿid, from Hammad, from Yaʿqub, from Muawiyah ibn Wahb, who said:
I asked Abu Abdullah عليه السلام about ablution (Wuduʾ), and Imam عليه السلام said: "Twice for each part."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 83