Anas bin Malik reported,

The Messenger of Allah ﷺ said, "Do not hate one another, do not envy one another, do not turn your backs on one another. Be servants of Allah as brothers. It is not lawful for a Muslim to shun his brother for more than three nights."

Azami 13357

Sahih

عن أنس بن مالك

أن رسول الله ﷺ قال: لا تباغضوا، ولا تحاسدوا، ولا تدابروا، وكونوا عباد الله إخوانا، ولا يحل لمسلم أن يهاجر أخاه فوق ثلاث ليال.

الأعظمي 13357صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Tafsir of the great Quran
Chapter
Tafsir of Surah Hujurat
Section
His saying, "O you who believe, avoid much suspicion, for indeed some suspicion is sin. And do not spy or backbite one another. Would one of you like to eat the flesh of his dead brother? You would detest it. And fear Allah, indeed"
Numbering
Jami al-Kamil 13357 (2nd edition)
Azami 13357