Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him), or perhaps Sayyiduna Imran (may Allah be pleased with him), narrates: I bear witness concerning the Prophet (peace and blessings be upon him) that he forbade the wearing of silk.
(Allamah al-Haythami says:) I say: It is because of the mention of Abu Sa'id al-Khudri (may Allah be pleased with him)
that I have included this narration here.
Imam Ahmad recorded it, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب اللباس / 8645