Sayyiduna al-Adda' bin Khalid (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say: "The Hour will not be established until a man greets with salam only those he knows, until the mosques are taken as thoroughfares, until a woman and her husband trade together, and until women and horses become cheap and do not become expensive again until the Day of Resurrection."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15109