Then He -azwj Sent the Prophets -as upon that until it...
Then He -azwj Sent the Prophets -as upon that until it reached to Muhammad -saww . So he -saww called them to, that they should be worshipping Allah -azwj should not be associating anything with Him -azwj , and Said [42:13] He has Legislated to you from the Religion what He Enjoined upon Nuh and that which We have Revealed to you and that which We Enjoined upon Ibrahim and Musa and Isa that be steadfast upon the Religion and be not divided therein; hard to the Polytheists is that which you call them to; Allah Chooses for Himself whom He Desires to, and Guides to Himself him who turns (to Him), frequently .
So the one who believes sincerely and dies upon that, Allah -azwj would Enter him into the Paradise due to that, [3:182] and because Allah is not in the least unjust to the servants , and that is because Allah -azwj would be Punishing a servant until he toughens upon it regarding the killing and the disobedience which Allah -azwj Obligated the Fire over it for the one who does it.