Which verses and hadiths can be used to reconcile two people, one of whom hates the other for no reason?

Striving to reconcile people is one of the best and most noble deeds, as Allah the Almighty says: "No good is there in much of their private conversation, except for whoever enjoins charity or what is just or reconciliation between people. And he who does this, seeking the approval of Allah, We will give him a great reward," and His saying: "The believers are but brothers, so make reconciliation between your two brothers and fear Allah that you may receive mercy," and the saying of the Prophet, peace be upon him: "Shall I not inform you of something better than the degree of fasting, prayer, and charity? They said: Yes, O Messenger of Allah. He said: Reconciling disputes, for discord among people is the destroyer."

Reconciliation between two brothers can be achieved by warning against ill-suspicion, as Allah the Almighty says: "O you who have believed, avoid much [negative] assumption. Indeed, some assumption is sin," and the saying of the Prophet, peace be upon him: "Beware of suspicion, for suspicion is the falsest of speech." Much of the hatred and malice among people stems from ill-suspicion and instigation. Also, by acting upon the hadiths that call for brotherhood among Muslims and abandoning the causes of hatred, such as the saying of the Prophet, peace be upon him: "Do not envy one another; do not outbid one another; do not hate one another; do not turn your backs on one another; and do not enter into a transaction when another has already entered into it. Be, O servants of Allah, brothers. A Muslim is the brother of a Muslim. He does not wrong him, nor does he forsake him, nor does he despise him. Piety is here," and he pointed to his chest three times, "It is enough evil for a man to despise his Muslim brother."