Hadith 549
´It was narrated from Abu Buraidah from his father that:` An-Najashi gave the Prophet a gift of a pair of plain black leather socks. He put them on, then he (performed ablution and) wiped over them.
Hadith 3620
It was narrated from Ibn Buraidah, from his father, that an-Najashi sent a pair of pure black Khuff as a gift to the Prophet (ﷺ) of, which he wore.