Umar ibn al-Khattab was one of the greatest leaders Islam ever had and did not budge on his principle of justice. He was born in 584 CE in Mecca, but at that time, he opposed the spreading of Islam; in 616 CE, however, he converted to be one of the closest companions of Prophet Muhammad (peace be upon him), thus initiating a rich legacy in the Islamic world.

Justice as a Cornerstone
The years of Umar's rule, from 634 to 644 CE, were often remembered for the high regard for justice. His policy was one of individualism regardless of social status. He set as his motto, "The nation of Muhammad is founded upon justice," and ensured that even he, the caliph, was not superior to the law; it was said that he even sat in judgment on himself at times.

Administrative Reforms
Umar introduced major administrative reforms, and these formed the backbone of the Islamic state. First was the establishment of a proper welfare system in the country. This provided stipends for the poor, orphans, and the old. He established a judiciary system as well, in which he selected those known for their integrity, giving fair treatment to those presenting legal cases.

His visionary leadership saw the expansion of the Islamic empire into vast territories like Persia and parts of the Byzantine Empire. He recognized the importance of infrastructure, initiating projects such as road construction and the establishment of a postal service that would enhance communication and trade across the empire.

A Leader of the People
Umar was approachable and had the care for people. He used to stroll at night around Medina listening to what people want or to which they complain. Modesty and dedication to people fetched him respect and love. One such incidence is where a woman openly argued with him over a specific policy in which he is willing to be answerable and speak to the people in an open dialogue.

Legacy of Forgiveness
Another quality of Umar's leadership was a spirit of tolerance. He introduced policies that encouraged the coexistence of religious communities, granting them freedom to practice their faiths. This ensured stability and harmony within the fast-expanding empire.

Conclusion
Umar ibn al-Khattab's legacy in justice and leadership lives on in contemporary discussions about governance and ethical leadership. The principles of accountability, compassion, and fairness, as exemplified by Umar, remind leaders of the values that should guide them in their service. Being one of the most pivotal figures in Islamic history, Umar's life exemplifies the profound impact of just leadership on society, making him an enduring symbol of integrity and justice.