Complex sentence: The Duranni clan in Afghanistan claim descent from Qais eldest son Sarbanar while the other main Pashtun sect the Ghilzais claim descent from his second sonQais third son is said to be the ancestor of other diverse tribes including the Safis around Peshawar.
Split into simpler sentences: The Duranni clan in Afghanistan claim descent from Qays'eldest son Sarbanar, while the other main Pashtun sect the Ghilzais claim descent from his second son. Qays' third son is said to be the ancestor of other diverse tribes, including the Safis around Peshawar.