Buraydah reported that the Negus gifted the Prophet ﷺ a pair of plain black leather socks. He wore them, then performed ablution and wiped over them.
أن النجاشي أهدى للنبي ﷺ خفين أسودين ساذجين، فلبسهما، ثم توضأ ومسح عليهما.
Abu Dawud (155), Tirmidhi (2820) and in Shamail (69), Ibn Majah (549, 3620), and Ahmad (22981) all narrated it via Waki, who said, "Dalham bin Salih Kindi narrated to us, from Hujayr bin Abdullah Kindi, from Abdullah bin Burayda bin Husayb, from his father," and he related it.Dalham bin Salih is daif, and Hujayr bin Abdullah Kindi is unknown (majhul), since no one narrated from him except Dalham bin Salih, and no one affirmed his reliability except Ibn Hibban, following his usual practice of authenticating unknown narrators. However, both of them have corroborating narrations.Abu Shaykh narrated it in Akhlaq Nabi ﷺ (p. 117) from Abu Bakr Bazzar, who said, "Muhammad bin Mirdas Ansari narrated to us, Yahya bin Kathir narrated to us, Jareeri narrated to us, from Abdullah bin Burayda, from his father," in similar fashion.The words "Yahya bin Kathir narrated to us" have been dropped from the printed edition of Musnad Bazzar (4392). Yahya bin Kathir is Abu Nadr, the companion of Basri, and he is daif.Jareeri's name is Saeed bin Iyas, Abu Masud Basri, who is trustworthy, except that his memory became confused three years before his death, though he is acceptable as a corroborating witness.By combining the two chains, the hadith reaches the level of hasan, and Tirmidhi likewise graded it hasan, saying, "This is a hasan hadith."As for his words, "two plain black [rings]," the word "sadhij" (with either fatha or kasra on the dhal) means that which is pure, unmixed, and unadorned.