It is narrated from Sayyiduna Abu Darda (may Allah be pleased with him), who reports from the Prophet (peace and blessings be upon him) that he said: "Shall I not tell you of an action that is superior to prayer, fasting, and charity?" The companions said: "Yes, indeed (please tell us)." He (peace and blessings be upon him) said: "Reconciling between people who are at odds. And creating discord among people shaves (destroys) the religion."
Hadith Referenceالادب المفرد / كتاب / 391
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه أبوداؤد ، كتاب الأدب ، باب فى إصلاح ذات البين : 4919 و الترمذي : 2509 - انظر المشكاة : 5038»
Explanation & Benefits
Shaykh Maulana Usman Muneeb
Benefits and Issues: ➊ Creating reconciliation in mutual dealings and establishing an environment of peace and tranquility so that people can fulfill their respective responsibilities with ease is a very great task. However, just as it is great, it is equally difficult. That is why it has been declared superior even to prayer (salah), fasting (sawm), and charity (sadaqah).
➋ The reason for declaring it superior to prayer, fasting, and charity may be that as long as people are not united and harmonious with one another, performing these obligations is not as beneficial for a person. If a person is mentally preoccupied, he will not be able to perform prayer with humility and devotion (khushu‘ and khudu‘); and even if he does perform it, its reward will be lost due to backbiting and ill suspicion.
➌ Mutual malice and enmity, estrangement, and discord turn homes and societies into hell. The Noble Qur’an has declared discord and corruption (fitnah and fasad) to be even worse than killing. Therefore, the one who causes corruption in society is worse than a murderer. Due to his evil, a person is deprived of acts of obedience, and even if he does perform a good deed, this act destroys that good deed. Just as a razor shaves off hair, in the same way, this (discord) wipes out righteous deeds.
Source: Fadlullah al-Ahad: Urdu Commentary on al-Adab al-Mufrad, Page: 391