Neither nurse mutual hatred, nor jealousy, nor enmity, and become as fellow brothers and servants of Allah. It is not lawful for a Muslim that he should keep his relations estranged with his brother beyond three days. (Using translation from Muslim 2558b)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ لَا تَبَاغَضُوا وَلَا تَقَاطَعُوا وَلَا تَدَابَرُوا وَلَا تَحَاسَدُوا وَكُونُوا عِبَادَ اللهِ إِخْوَانًا وَلَا يَحِلُّ لِمُسْلِمٍ أَنْ يَهْجُرَ أَخَاهُ فَوْقَ ثَلَاثَةِ أَيَّامٍ