Complex sentence: Moroccan explorer Ibn Battuta observed Ibadis praying Jumu'ah in Oman-which he said they prayed in the same manner as Zuhr prayer-and noticed that they invoked God's mercy on Abu Bakr and Umar but not Uthman and Ali.
Split into simpler sentences: Moroccan explorer Ibn Battuta observed Ibadis praying Jumu'ah in Oman and said they prayed in the same manner as Zuhr prayer. He noticed that they invoked God's mercy on Abu Bakr and Umar but not Uthman and Ali.