Gibson has found that the qibla walls of the oldest mosques show Petra. Combining these findings with clues in verses, hadiths, and traditional Prophetic biography sources, Gibson concluded that Muhammad lived in Petra and migrated from here to Medina. According to him, the first qibla of Muslims was not the Masjid al-Aqsa in Jerusalem, but the cubic building, which was used as the El-Lât temple in Petra. This structure was destroyed during the Abdullah bin Zubayr uprising among the Muslims Second Fitna.