if allah had so willed he could have made them all a single community. but he admits whomsoever he pleases into his mercy. as to those given to wrongdoing they shall have none as protector or helper.
ولو شاء الله لجعلهم أمة واحدة ولكن يدخل من يشاء في رحمته والظالمون ما لهم من ولي ولا نصير