Sahih al-Bukhari 7185
Narrated Um Salama:
The Prophet (ﷺ) heard the voices of some people quarreling near his gate, so he went to them and said, "I 
am only a human being and litigants with cases of disputes come to me, and maybe one of them 
presents his case eloquently in a more convincing and impressive way than the other, and I give my 
verdict in his favor thinking he is truthful. So if I give a Muslim's right to another (by mistake), then 
that (property) is a piece of Fire, which is up to him to take it or leave it." (See Hadith No. 281 )
حَدَّثَنَا أَبُو الْيَمَانِ، أَخْبَرَنَا شُعَيْبٌ، عَنِ الزُّهْرِيِّ، أَخْبَرَنِي عُرْوَةُ بْنُ الزُّبَيْرِ، أَنَّ زَيْنَبَ بِنْتَ أَبِي سَلَمَةَ، أَخْبَرَتْهُ عَنْ أُمِّهَا أُمِّ سَلَمَةَ، قَالَتْ سَمِعَ النَّبِيُّ صلى الله عليه وسلم جَلَبَةَ خِصَامٍ عِنْدَ بَابِهِ فَخَرَجَ عَلَيْهِمْ فَقَالَ ‏
"‏ إِنَّمَا أَنَا بَشَرٌ، وَإِنَّهُ يَأْتِينِي الْخَصْمُ، فَلَعَلَّ بَعْضًا أَنْ يَكُونَ أَبْلَغَ مِنْ بَعْضٍ، أَقْضِي لَهُ بِذَلِكَ وَأَحْسِبُ أَنَّهُ صَادِقٌ، فَمَنْ قَضَيْتُ لَهُ بِحَقِّ مُسْلِمٍ فَإِنَّمَا هِيَ قِطْعَةٌ مِنَ النَّارِ، فَلْيَأْخُذْهَا أَوْ لِيَدَعْهَا ‏"‏‏.‏