Title:

The title of Hazrat ‘Uthmaan (radhiyallahu ‘anhu) was ‘Zun-Noorain’ (the possessor of the two lights). ‘Two lights’ referred to the two blessed daughters of Rasulullah (sallallahu ‘alaihi wasallam), Hazrat Ruqayyah (radhiyallahu ‘anha) and Hazrat Ummu Kulthoom (radhiyallahu ‘anha).

Hazrat Hasan Basri (rahimahullah) has explained that Hazrat ‘Uthmaan (radhiyallahu ‘anhu) was given this title as he was the only person who had married two daughters of a Nabi (Hazrat ‘Uthmaan (radhiyallahu ‘anhu) married Hazrat Ummu Kulthoom (radhiyallahu ‘anha) after the demise of Hazrat Ruqayyah (radhiyallahu ‘anha)). (Siyar A’laam min Nubalaa 2/566/568)