مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3048
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه) that The Messenger of Allah (ﷺ) did wudoo' washing each part once.
Musnad Ahmad 3073Its isnad is saheeh, al-Bukhari (157)]