The Prophet ﷺ said to a man whom he was having take an oath, meaning the defendant, "Swear by Allah, there is no god but He, that you owe him nothing," meaning the claimant.
حدثنا مسدد حدثنا أبو الأحوص حدثنا عطاء بن السائب عن أبي يحيى
أن النبي ﷺ قال يعني لرجل حلفه احلف بالله الذي لا إله إلا هو ما له عندك شيء يعني للمدعي
No references are available.
[Hasan] Previously mentioned, no. 3275. Nasai narrated it in Al-Kubra, no. 6007, from the hadith of Abu Ahwas, and Ahmad, 1/253, from the hadith of Ata bin Saaib, from him.