(1) باب الْيَمِينُ عَلَى الْمُدَّعَى عَلَيْهِ
Ibn Abbas reported Allah's Apostle (ﷺ) as saying:
If the people were given according to their claims, they would claim the lives of persons and their properties, but the oath must be taken by the defendant.
Reference: Sahih Muslim 1711 a
In-book reference: Book 30, Hadith 1
USC-MSA web (English) reference(deprecated numbering scheme): Book 18, Hadith 4244