The first person to hold the office of "Qadi" (judge) of Egypt after the Muslim conquest was:
Q1. The first person to hold the office of "Qadi" (judge) of Egypt after the Muslim conquest was:
Answer: Qays ibn Abi al-As
Explanation: Qays ibn Abi al-As al-Sahmi is recorded as the first Qadi (judge) appointed over Egypt following the Muslim conquest under Amr ibn al-As, marking the establishment of the Islamic judicial system there.