The Prophet ﷺ performed ablution by washing each part twice.
حدثنا محمد بن العلاء حدثنا زيد يعني ابن الحباب حدثنا عبد الرحمن بن ثوبان حدثنا عبد الله بن الفضل الهاشمي عن الأعرج
أن النبي ﷺ توضأ مرتين مرتين
No references are available.
Sourcing, its chain is hasan. Tirmidhi narrated it in the chapter on Purification, in the section on what has been reported regarding performing wudu twice, hadith 43, from the hadith of Zayd bin Hubab through this route, and he said, hasan gharib.