After the Prophet (PBUH) took refuge from the stone throwing mob in his trip to Taif, Angel Jibrael came to the Prophet and asked him if he so wished Jibrael would give the command to bury the city between two mountains. Although the prophet (PBUH) had suffered a great deal at the hands of these people, he replied that he did not wish destruction for the people of Taif because maybe their offspring would proclaim the religion of truth. (Narrated by Al-Bukhari and Muslim)