Nafi' said: Ibn Umar (may Allah be pleased with them both) heard a man say: I am the son of the disciple of the Prophet (peace and blessings be upon him). Ibn Umar said: "If you are from the family of al-Zubayr, then fine; otherwise, no."
Hadith Referenceالمعجم الكبير للطبراني / العشرة / 224