صحيح مسلم بالإنكليزيةBook 26: The Book on Salutations and Greetings (Kitab As-Salam) › Chapter 6: PERMISSIBILITY OF GIVING PERMISSION (TO ENTER THE HOUSE) BY RAISING THE CURTAIN OR MAKING SOME OTHER SIGNS LIKE IT
Ibn Mas'ud reported: The Messenger of Allah (may peace be upon him) said to me: The sign that you have been permitted to come in is that the curtain is raised or that you hear me speaking quietly until I forbid you.