Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
nasai-kubra:5964Hannād b. al-Sarī > Abū al-Aḥwaṣ > ʿAṭāʾ > Abū Yaḥyá > Ibn ʿAbbās

[Machine] Two opponents came to the Prophet ﷺ and one of them accused the other with a valid claim. The Prophet ﷺ told the accuser, "Present your evidence." He replied, "O Messenger of Allah, I have no evidence." So the Prophet ﷺ said to the other person, "Swear by Allah, the One besides whom there is no god, if you have anything against him or with you." So he swore.  

الكبرى للنسائي:٥٩٦٤أَخْبَرَنَا هَنَّادُ بْنُ السَّرِيِّ عَنْ أَبِي الْأَحْوَصِ عَنْ عَطَاءٍ عَنْ أَبِي يَحْيَى عَنِ ابْنِ عَبَّاسٍ قَالَ

جَاءَ خَصْمَانِ إِلَى النَّبِيِّ ﷺ فَادَّعَى أَحَدُهُمَا عَلَى الْآخَرِ حَقًّا فَقَالَ النَّبِيُّ ﷺ لِلْمُدَّعِي «أَقِمْ بَيِّنَتَكَ» فَقَالَ يَا رَسُولَ اللهِ لَيْسَ لِي بَيِّنَةٌ فَقَالَ لِلْآخَرِ «احْلِفْ بِاللهِ الَّذِي لَا إِلَهَ إِلَّا هُوَ مَا لَهُ عَلَيْكَ أَوْ عِنْدَكَ شَيْءٌ فَحَلَفَ»