translation.en: My last book was about the story behind the Shi'a-Sunni split, and for that I'd worked closely with the earliest Islamic histories, so I knew the events to which the Koran constantly refers, its frame of reference.
translation.zh: 我最近的一本书 讲的是关于叶什和逊尼两派（伊斯兰教的两个分支）纷争的故事， 因为它，我跟伊斯兰的早期历史打过交道， 所以我很熟悉那些历史事件， 可兰经里反复提及的事件， 即它的历史背景。