رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1595
The Book of the Prohibited actions
Prohibition of Breaking ties and Relationships
وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : لَا يَحِلُّ لِمُسْلِمٍ أَنْ يَهْجُرَ أَخَاهُ فَوْقَ ثَلاَثٍ، فَمَنْ هَجَرَ فَوْقَ ثَلاَثٍ، فَمَاتَ دَخَلَ النَّارَ .((رَوَاهُ أَبُو دَاوُدَ بِإِسْنَادٍ عَلَى شَرْطِ الْبُخَارِيّ)).
Abu Hurairah (May Allah be pleased with him) said: The Messenger of Allah (ﷺ) said, "It is not lawful for a Muslim to forsake his (Muslim) brother beyond three days; and whosoever does so for more than three days, and then dies, will certainly enter the Hell." [Abu Dawud].
Riyad as-Salihin, 1595