The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship
Ṣaḥīḥ Muslim 6537
لاَ تَهَجَّرُوا وَلاَ تَدَابَرُوا وَلاَ تَحَسَّسُوا وَلاَ يَبِعْ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ وَكُونُوا عِبَادَ اللَّهِ إِخْوَانًا
lā tahajjarūā walā tadābarūā walā taḥassasūā walā yabiʿ baʿḍukum ʿalā bayʿi baʿḍin wakūnūā ʿibāda-Llāh ikhwānan
Transliteration generated from the Arabic vowel marks
The full narration
Abu Huraira reported Allah's Messenger (ﷺ) as saying:Don't have estranged relations (with the others) and don't nurse enmity and don't enter into a transaction when the other (has already entered) and be fellow-brothers and servants of Allah
Source
Ṣaḥīḥ Muslim · 6537
Ṣaḥīḥ