It was narrated from Ja'far bin 'Amr bin Umayyah Ad-Damri that his father saw the Messenger of Allah (ﷺ) performing Wudu' and wiping over his Khuffs.
Sunan an-Nasa'i Book 1, Hadith 119
← Previous Hadith "Are you wiping (over you Khuffs)?" He said: "I saw the Messenger of Allah (ﷺ) wiping (over his Khuffs)." The companions of 'Abdullah liked what Jarir said, because Jarir became Muslim shortly before the Prophet (ﷺ) died.

In the narration recorded by At-Tirmidhi Nos. 93,94) this comment is attributed to Ibrahim, one of the narrators.

Sunan an-Nasa'i Book 1, Hadith 118 Next Hadith → "The Messenger of Allah (ﷺ) and Bilal entered Al-Aswaf and he went to relieve himself and then came out." Usamah said: "I asked Bilal: 'What did he do?' Bilal said: 'The Prophet (ﷺ) went to relieve himself, then he performed Wudu', so he washed his hands and face, and wiped his head and he wiped over his Khuffs, then prayed.'"

Sunan an-Nasa'i Book 1, Hadith 120