The River Nile was declared "Sayyid-ul-Anhar" (Chief of Rivers) by Caliph:
Q1. The River Nile was declared "Sayyid-ul-Anhar" (Chief of Rivers) by Caliph:
Answer: Umar (RA)
Explanation: Caliph Umar ibn al-Khattab (RA) is said to have declared the River Nile "Sayyid al-Anhar" (Chief of Rivers) in recognition of its immense life-giving importance to Egypt after the Muslim conquest.