Manners Matter

There is no doubt that Allāh has completed our Dīn for us, completed His favours upon us, and sent us a Messenger ﷺ who was extremely merciful towards his people. That Messenger, Muḥammad ﷺ, guided us to everything good and warned us about everything evil. His guidance is applicable and binding upon mankind until the Day of Judgement (i.e. the end of this world).