Umm Salama bint Abu Umaya reported,

The Messenger of Allah ﷺ said, "You bring your disputes to me, and perhaps some of you are more eloquent in presenting their argument than others. So whoever I rule in favor of, granting him something that rightfully belongs to his brother based on his words, I am only cutting off for him a piece of the Fire, so let him not take it."

Bukhari 2680

Sahih

حدثنا عبد الله بن مسلمة عن مالك عن هشام بن عروة عن أبيه عن زينب

عن أم سلمة رضي الله عنها

أن رسول الله ﷺ قال إنكم تختصمون إلي ولعل بعضكم ألحن بحجته من بعض فمن قضيت له بحق أخيه شيئا بقوله فإنما أقطع له قطعة من النار فلا يأخذها

البخاري 2680صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Testimonies
Chapter
One who produces evidence after the oath
Numbering
Darussalam 2680
Bukhari 2680