Abu Darda reported,

The Messenger of Allah ﷺ said, "Shall I not tell you of something better in rank than fasting, prayer, and charity?"They replied, "Yes, please do."He said, "Reconciling between people, for corruption of relations between people is the shaver."

Azami 12215

Sahih

عن أبي الدرداء قال

قال رسول الله ﷺ: ألا أخبركم بأفضل من درجة الصيام والصلاة والصدقة؟ قالوا: بلي. قال: صلاح ذات البين، فإن فساد ذات البين هي الحالقة.

الأعظمي 12215صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Tafsir of the great Quran
Chapter
Virtues of Surah Baqarah
Section
His saying, "There is no good in much of their private conversation, except for those who enjoin charity or that which is right or reconciliation between people. And whoever does that seeking the pleasure of Allah, We will give him a great reward"
Numbering
Jami al-Kamil 12215 (2nd edition)
Azami 12215