ENOfficial
It was narrated from Abu Bakrah that the Messenger of Allah (ﷺ) said: “There is no sin more deserving that Allah hasten the punishment in this world, in addition to what is stored up for him in the Hereafter – than injustice and severing the ties of kinship.”
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا الْحُسَيْنُ بْنُ الْحَسَنِ الْمَرْوَزِيُّ، أَنْبَأَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، وَابْنُ، عُلَيَّةَ عَنْ عُيَيْنَةَ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِيهِ، عَنْ أَبِي بَكْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " مَا مِنْ ذَنْبٍ أَجْدَرُ أَنْ يُعَجِّلَ اللَّهُ لِصَاحِبِهِ الْعُقُوبَةَ فِي الدُّنْيَا مَعَ مَا يَدَّخِرُ لَهُ فِي الآخِرَةِ - مِنَ الْبَغْىِ وَقَطِيعَةِ الرَّحِمِ " .
sunnah.com