It is narrated from Sayyiduna Abu Sa'id (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, your Lord is one and your father is one. No Arab has any superiority over a non-Arab, nor a non-Arab over an Arab, nor a red person over a black one, nor a black one over a red one, except on the basis of taqwa (piety)."
No one narrated this hadith from al-Jurayri (may Allah have mercy on him) except Abu al-Mundhir al-Warraq (may Allah have mercy on him); Sahl bin Uthman (may Allah have mercy on him) is alone in it; and it is not narrated from Sayyiduna Abu Sa'id (may Allah be pleased with him) except with this chain.
Hadith Referenceالمعجم الأوسط / باب العين / 4749
Hadith Gradingمحدثین:رجال البزار رجال الصحيح
Hadith Takhrij«قال الهيثمي: رجال البزار رجال الصحيح «مجمع الزوائد ومنبع الفوائد، ج 8، ص 84»»