Original sentence: His Pashtun heritage and his native Persian tongue gave him credibility with both groups: The powerful Pashtun tribes of the south and the Persian speaking majority.Zahir Shah was born into the Pashtun Popalzai Dynasty of Afghanistan but spoke in Persian language only
Edited sentence: His Pashtun heritage and his native Persian tongue gave him credibility with both groups: the powerful Pashto speaking tribes of the south and the Persian speaking majority.The shah was born into the Persian speaking Pashtun Barakzay dynasty of Afghanistan