Umm Salamah reported: The Messenger of Allah, peace and blessings be upon him, heard some people disputing near the door of his house. The Prophet came out and said, “Verily, I am only a human being. Two opponents come to me for judgment and perhaps some of you are more articulate than others, so I consider him truthful and by that I judge in his favor. For whomever I mistakenly forfeit the right of a Muslim, it is only a piece of Hellfire; let him take it or leave it.”
Source: Ṣaḥīḥ al-Bukhārī 2326, Ṣaḥīḥ Muslim 1713
Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim
عن أُم سَلَمَة عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنَّهُ سَمِعَ خُصُومَةً بِبَابِ حُجْرَتِهِ فَخَرَجَ إِلَيْهِمْ فَقَالَ إِنَّمَا أَنَا بَشَرٌ وَإِنَّهُ يَأْتِينِي الْخَصْمُ فَلَعَلَّ بَعْضَكُمْ أَنْ يَكُونَ أَبْلَغَ مِنْ بَعْضٍ فَأَحْسِبُ أَنَّهُ صَدَقَ فَأَقْضِيَ لَهُ بِذَلِكَ فَمَنْ قَضَيْتُ لَهُ بِحَقِّ مُسْلِمٍ فَإِنَّمَا هِيَ قِطْعَةٌ مِنْ النَّارِ فَلْيَأْخُذْهَا أَوْ فَلْيَتْرُكْهَا
2326 صحيح البخاري كتاب المظالم باب إثم من خاصم في باطل وهو يعلمه
1713 صحيح مسلم كتاب الأقضية باب الحكم بالظاهر واللحن بالحجة