Say: Because of the Blessings (fadl) of Allah and His Mercy (rahma) you should celebrate (with happiness and pleasure). That is better than what (wealth) they amass. (Surah Yunus)

The scholars say that Allah (swt) is referring to the Prophet Muhammad in this verse, Rahma and Fadl is a direct reference to the Prophet Muhammad (saw).

Do you celebrate the birth of the Prophet Muhammad (saw)?

Do you rejoice his birth or acknowledge it?

If not, why not?

Do you celebrate it all year round or just in the month of Rabbi ul-Awwal?