Ruling on circumcision for one who has become Muslim
Question

                What is the ruling on circumcision for a new Muslim, and when should he get circumcised?.
Praise be to Allah.
      Circumcision for the new Muslim is obligatory, as it is for 
      one is born Muslim, and he has to get circumcised when he becomes Muslim, 
      but if delaying it could serve some interest, such as avoiding putting him 
      off Islam, because Islam not yet established in his heart, there is 
      nothing wrong with that, because the evil that results from delaying 
      circumcision is less serious than the evil that results from his apostasy 
      from Islam after becoming Muslim. End quote. 

    Shaykh Ibn ‘Uthaymeen (may Allah have mercy on him)