Who is a true Muslim ?

A'lahazrat never celebrated birth-day of his own or of his sons etc. A'lahazrat celebrated birth-day function (Eid-i-Milad-al-Nabi) of Holy Prophet (Allah's Grace and Peace be upon him) with all the fervour and gaiety. Mufti-i-Azam Hind Hazrat Mustafa Riza Khan says: that,
"A'lahazrat had no complaint with anyone who failed to attend the Urs but A'lahazrat definitely expressed his displeasure with those who failed to attend the holy function of the Holy Birth (Eid-i-Milad-al-Nabi) of Holy Prophet (Allah's Grace and Peace be upon him) organized by A'lahazrat at his residence."