حَدَّثَنَا حَسَنُ بْنُ مُوسَى حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ عَنْ عَطَاءِ بْنِ السَّائِبِ عَنْ أَبِي يَحْيَى عَنِ ابْنِ عَبَّاسٍ أَنَّ رَجُلَيْنِ اخْتَصَمَا إِلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَسَأَلَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الْمُدَّعِيَ الْبَيِّنَةَ فَلَمْ يَكُنْ لَهُ بَيِّنَةٌ فَاسْتَحْلَفَ الْمَطْلُوبَ فَحَلَفَ بِاللَّهِ الَّذِي لَا إِلَهَ إِلَّا هُوَ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنَّكَ قَدْ حَلَفْتَ وَلَكِنْ قَدْ غَفَرَ اللَّهُ لَكَ بِإِخْلَاصِكَ قَوْلَكَ لَا إِلَهَ إِلَّا اللَّهُ
مسند امام احمد بن حنبل · Hadith 2613
It was narrated from Ibn 'Abbas (RA) that two men referred a dispute to the Prophet (PBUH). The Messenger of Allah (PBUH) asked the claimant for proof, but he did not have any proof, so he asked the defendant to swear an oath, and he swore by Allah, besides Whom there is no other god. The Messenger of Allah (PBUH) said: "You have sworn an oath, but Allah has forgiven you because of your sincerity in saying. There is no god but Allah."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020