Sunan Abi Dawud, Hadith 1692

Jubair bin Mut’im reported on the authority of his father: The Prophet said: Anyone who cuts off relationship from his nearest relatives will not enter Paradise.

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ مُحَمَّدِ بْنِ جُبَيْرِ بْنِ مُطْعِمٍ، عَنْ أَبِيهِ، يَبْلُغُ بِهِ النَّبِيَّ صلى الله عليه وسلم قَالَ ‏ "‏ لاَ يَدْخُلُ الْجَنَّةَ قَاطِعُ رَحِمٍ ‏" ‏ ‏.‏

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also referenced under: Hadith 1696 (DarusSalam)