Regarding the date of the blessed birth of Rasulullah (sallallahu ‘alaihi wasallam), the view that he was born on the 12th of Rabi‘ul-Awwal is the most famous view. However, according to the majority of the Muhadditheen and historians, the preferred view is that Rasulullah (sallallahu ‘alaihi wasallam) was born on the 8th of Rabee’-ul-Awwal.

The mother of Hazrat ‘Uthmaan bin Abul ‘Aas (radhiyallahu ‘anhu), Faatimah bintu ‘Abdillah, says, “At the time of the blessed birth of Rasulullah (sallallahu ‘alaihi wasallam), I was with his mother, Aaminah. I noticed that the entire house was filled with Noor, and I also saw the stars stooping so low that I thought they would fall onto me.”

Hazrat ‘Irbaadh bin Saariyah (radhiyallahu ‘anhu) relates that during the blessed birth of Rasulullah (sallallahu ‘alaihi wasallam), his mother observed a Noor that illuminated the palaces of Syria. According to another report, the palaces of Busra (not Basra) were illuminated.

(Extracted from Seeratul Mustafa 1/51)