By reading closely the Prophet's speeches, it is apparent that he believed in justice for all humanity. He embodied the commandment of the Quran: "O you who believe! Be upright for Allah(God), bearers of witness with justice, and let not hatred of a people incite you not to act equitably; act equitably, that is nearer to piety, and be careful of (your duty to) Allah(God); surely Allah(God) is Aware of what you do." (Quran: 5/8).
Textual analysis of his speeches also revealed he did not even discriminate between a near relative and a stranger in these matters; if the stranger was in the right, he decreed against his relative and in favor of the stranger.
This strict fairness of the Prophet(pbuh) in matters of disputes and crimes was in line with the commandment of the Quran not to distinguish between a relative and a stranger in matters of justice: "And when you speak, then be just though it be (against) a relative, and fulfill Allah(God)'s covenant; this He has enjoined you with that you may be mindful." (Quran: 6/152).
The analysis demonstrates that he was a very fair and just man and succeeded not only in establishing a very high standard of justice but also in setting a code of law that helped to establish and strengthen the rule of law in a country wherein before there had been neither any rule of law nor any respect for law or justice. He so firmly established a system of justice in the country and so firmly and deeply engraved it in the hearts of his people that they truly became the messengers of justice for the people of the world.
The standard of the Prophet's concept of justice was so exalted that he could not tolerate any kind of discrimination between man and man on the basis of color, creed, race, nationality, language, birth or status where it came to judging disputes between them. It was a universal code of law that exceeded the barriers of time and space and applied equally to all races and all nations. As time went by, people unconsciously welcomed this code of law not knowing that it was Prophet Muhammad (pbuh) who gave it birth.
( pbuh = peace be upon him )
* Note about References: This website does not necessarily agree with all the ideas and the political view of the author of the referenced articles.