Complex sentence: That is, When he advanced towards the East in babylon.the people, who had no shelter were the captured tribes of israel.the reason the Quran mentions no more on the topic is because the whole epic is written in torah (kings).
Split into simpler sentences: That is, when he advanced towards the East in Babylon, the people, who had no shelter were the captured tribes of Israel. The reason the Quran mentions no more on the topic is because the whole epic is written in the Torah (Kings).