Umar Quotes
Don't forget your own self while preaching to others.
Modern versions are “practice what you preach”. Hypocrisy was always recognized if leaders did not set an example. The Caliph was both the civil ruler and the religious ruler as well. Therefore he made rules for the clergy as well as civil officials.
Umar ibn al-Khattab, ~ 581-644, Umar I, 2nd Islamic Caliph & Companion to The Prophet, Instructions to Imams
Sourced by: Eigen's Political and Historical Quotations
ʿUmar ibn al-Khaṭṭāb, was the second Rashidun caliph, ruling from August 634 until his assassination in 644. He succeeded Abu Bakr (r. 632–634) as the second caliph of the Rashidun Caliphate on 23 August 634. Umar was a senior companion and father-in-law of the Islamic prophet Muhammad. He was also an expert Muslim jurist known for his pious and just nature, which earned him the epithet Al-Fārūq ("the one who distinguishes (between right and wrong)"). The title Amir al-Mu'minin was held by Umar ibn Khattab who was also the first one to be given this title.