Sahih Muslim Book - 30, Hadith - 4473

حَدَّثَنَا يَحْيَى بْنُ يَحْيَى التَّمِيمِىُّ أَخْبَرَنَا أَبُو مُعَاوِيَةَ عَنْ هِشَامِ بْنِ عُرْوَةَ عَنْ أَبِيهِ عَنْ زَيْنَبَ بِنْتِ أَبِى سَلَمَةَ عَنْ أُمِّ سَلَمَةَ قَالَتْ قَالَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- « إِنَّكُمْ تَخْتَصِمُونَ إِلَىَّ وَلَعَلَّ بَعْضَكُمْ أَنْ يَكُونَ أَلْحَنَ بِحُجَّتِهِ مِنْ بَعْضٍ فَأَقْضِى لَهُ عَلَى نَحْوٍ مِمَّا أَسْمَعُ مِنْهُ فَمَنْ قَطَعْتُ لَهُ مِنْ حَقِّ أَخِيهِ شَيْئًا فَلاَ يَأْخُذْهُ فَإِنَّمَا أَقْطَعُ لَهُ بِهِ قِطْعَةً مِنَ النَّارِ ».

It was narrated that Umm Salamah said: The Messenger of Allah (s.a.w) said: "You refer your disputes to me, but one of you may be more eloquent in arguing than the other, and I judge in his favor because of what I hear from him. If I allocate to a person something that is his brother's right, let him not take it, for I have allocated him a piece of Fire."