My name is 'Hadi' (the guide). Since the One Who guides is Only Allah (Glorified and Exalted be He), is it permissible for me to retain my name or should I change it?
It is not prohibited to retain your name because the word 'Hadi' is a joint word that can be used for Allah (Exalted be He) and for others who guide people to that which benefits them, such as messengers as in Allah's saying:
...and to every people there is a guide.
It is well-established that describing Allah (Exalted be He) that He is the 'Hadi' is not the same as describing creatures in the same way. However, if you change your name to '`Abd-ul-Hadi' it is not prohibited according to Shar` (Islamic law).May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.