Complex sentence: Al-Saud clan regained the control of Hijaz in 1924 (or 1925), next year King Ibn Saud granted the permission of destruction with religious authorization provided by Qadi Abd Allah ibn Bulayhid, and the program was started on 21 April 1926.
Split into simpler sentences: Al-Saud clan regained the control of Hijaz in 1924 (or 1925). Next year King Ibn Saud granted the permission of destruction with religious authorization provided by Qadi Abd Allah ibn Bulayhid, and the program was started on 21 April 1926.