It is narrated from Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Among the signs of the Hour is that a base man, son of a base man, will gain mastery over the world. The best of people on that day will be a believer who is between two noble ones."
No one narrated this hadith from Imam al-Zuhri (may Allah have mercy on him) except Ja'far bin Burqan (may Allah have mercy on him), and no one from Ja'far except Asbagh bin Muhammad (may Allah have mercy on him); Amr bin Uthman (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الميم / 7316
Hadith Takhrij«أخرجه الطبراني فى «الأوسط» برقم: 4677»