There is a narration mentioned in Al Adab Al Mufrad that Ibn Omer may Allah be pleased with him said: whenever you enter an uninhabited house, you should say Assalam alaina wa ala ibadillahi assaliheen.
There is a narration mentioned in Al Adab Al Mufrad that Ibn Omer may Allah be pleased with him said: whenever you enter an uninhabited house, you should say Assalam alaina wa ala ibadillahi assaliheen.