Patricia Crone notes:
In addition, the Qur’an twice describes its opponents as living in the site of a vanished nation, that is to say a town destroyed by God for its sins. There were many such ruined sites in northwest Arabia. The prophet frequently tells his opponents to consider their significance and on one occasion remarks, with reference to the remains of Lot’s people, that “you pass by them in the morning and in the evening”. This takes us to somewhere in the Dead Sea region. Respect for the traditional account has prevailed to such an extent among modern historians that the first two points have passed unnoticed until quite recently, while the third has been ignored. The exegetes said that the Quraysh passed by Lot’s remains on their annual journeys to Syria, but the only way in which one can pass by a place in the morning and the evening is evidently by living somewhere in the vicinity.
This is fascinating. How could these revelations have occurred in Mecca or Medina if the people hearing them passed by Sodom in the morning and evening?