Etiquette #02: Seeking Permission | The Ten Etiquettes | Delivered by Mufti Eunus Ali

The Ten Etiquettes by Shaykh Usaymi:
The second (etiquette): If you want to enter upon someone then take permission, standing at either the right or left side of the door. If you are given permission, then you may enter. And if you were told: “Go back”, then go back.