It occurred to me to explain a truth to you which will save you both from worldly torment and the torment of the Hereafter. It is as follows:

For example: A person killed someone’s brother or one of his relatives. A murder which yields one minute’s pleasure of revenge causes millions of minutes of both distress for the heart and the anguish of prison. And the fear of revenge by the murdered man’s relatives, and anxiety of finding himself face to face with his enemy drives away all his pleasure and enjoyment in life. He suffers the torment of both fear and anger. There is only one solution for this, and that is reconciliation, which the Qur’an commands, and truth, reality, benefit, humanity, and Islam require and encourage.

Indeed, the reality and requirement is peace, because the appointed hour is set, it does not change. Since his appointed hour had come, the murdered man would have stayed no longer in any event. And as for the murderer, he was the means of Allah’s decree being carried out. So long as there is no reconciliation, both sides perpetually suffer the torments of fear and revenge. It is because of this that Islam commands that "one believer should not be vexed with another believer for more than three days". If the murder was not the result of a vindictive grudge and enmity, and a two-faced trouble-maker instigated the discord, it is essential to make peace quickly.