Adab al-Mufrad

Benefits and Issues:
➊ The point is to avoid those causes which lead to enmity, because enmity does not arise initially.
➋ Allah Ta’ala has placed in every human nature this sense of honor that he does not want to see anyone above himself. Many people strive to attain this high status and make supplications for it. This is not blameworthy. Some people, instead of working hard, wish for the downfall of others’ blessings and burn in the fire of envy, thinking: “Why does he have it? Why don’t I?” Such a desire is blameworthy. Some people even try to remove that blessing from others. Their objective is that the blessing should be taken away from the other person; whether they themselves receive it or not is of no concern to them. This is the worst form of envy (hasad), and it was this that afflicted Iblis and caused Adam alayhis salam to be expelled from Paradise.
➌ Mutual displeasure is permissible for up to three days; after that, abandoning speech leads to enmity, hostility, and estrangement, so after this period, the displeasure should be ended. However, a husband may remain displeased with his wife for up to four months. Similarly, displeasure for the sake of religion is also permissible, as Ibn Umar radi Allahu anhuma was displeased with his son Bilal when he hesitated to accept a hadith. Likewise, the Noble Prophet sallallahu alayhi wa sallam boycotted the three sincere Companions—Ka‘b ibn Malik, Hilal ibn Umayyah, and Murarah ibn Rabi‘—who stayed behind from the Battle of Tabuk, and he ordered the Companions to do the same for fifty days. However, it is obligatory to sever ties with openly sinful, immoral, and innovating people until they repent.