3731 When a document is sealed, it is complete, and there can be no further addition. The Prophet Muhammad closed the long line of Messengers. Allah's teaching is and will always be continuous, but there has been and will be no Prophet after Muhammad. The later ages will want thinkers and reformers, not Prophets. This is not an arbitrary matter. It is a decree full of knowledge and wisdom, "for Allah has full knowledge of all things."