1. Political affairs:
“And those who have responded to their lord and established prayer and whose affair is [determined by] consultation among themselves, and from what We have provided them, they spend.” [Al- Quran 42:38]
Means, they do not make a decision without consulting one another on the matter so that they can help one another by sharing their ideas concerning issues such as wars and other matters.
“So by mercy from Allah, [O Muhammad], you were lenient with them. And if you had been rude [in speech] and harsh in heart, they would have disbanded from about you. So pardon them and ask forgiveness for them and consult them in the matter. And when you have decided, then rely upon Allah . Indeed, Allah loves those who rely [upon Him].” [Al- Quran 3:159]
The Prophet used to consult with them concerning wars and other matters, so that they would feel confidant. When Umar bin Al-Khattab, may Allah be pleased with him, was dying, after he had been stabbed, he entrusted the choice of the next Khalifah to six people who were to be consulted. They were Uthman, Ali, Talhah, Az-Zubayr, Sa`id and Abdur-Rahman bin Awf, may Allah be pleased with them all. Then all of the Companions, may Allah be pleased with them, agreed to appoint Uthman as their leader.
2. Justice:
[And Luqman said], “O my son, indeed if wrong should be the weight of a mustard seed and should be within a rock or [anywhere] in the heavens or in the earth, Allah will bring it forth. Indeed, Allah is Subtle and Acquainted.” [Al- Quran 31:16]
Means, if a wrong action or a sin be equal to the size of a grain of mustard seed, He will bring it forth on the Day of Resurrection, when it is placed in the Scales of justice and everyone is rewarded or punished for his actions — if they are good, he will be rewarded and if they are bad he will be punished. [Tafseer Ibn Kathir]
“O you who have believed, be persistently standing firm in justice, witnesses for Allah, even if it be against yourselves or parents and relatives. Whether one is rich or poor, Allah is more worthy of both. So follow not [personal] inclination, lest you not be just. And if you distort [your testimony] or refuse [to give it], then indeed Allah is ever, with what you do, Acquainted.” [Al- Quran 4:135]
“O you who have believed, be persistently standing firm for Allah, witnesses in justice, and do not let the hatred of a people prevent you from being just. Be just; that is nearer to righteousness. And fear Allah ; indeed, Allah is Acquainted with what you do.” [Al- Quran 5:8]
“And if two factions among the believers should fight, then make settlement between the two. But if one of them oppresses the other, then fight against the one that oppresses until it returns to the ordinance of Allah . And if it returns, then make settlement between them in justice and act justly. Indeed, Allah loves those who act justly.” [Al- Quran 49:9]
“And in anything over which you disagree – its ruling is [to be referred] to Allah . [Say], “That is Allah, my Lord; upon Him I have relied, and to Him I turn back.” [Al- Quran 42:10]
“O you who have believed, obey Allah and obey the Messenger and those in authority among you. And if you disagree over anything, refer it to Allah and the Messenger, if you should believe in Allah and the Last Day. That is the best [way] and best in result.” [Al- Quran 4:59]