Arabic (Original)
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.
English Translation
Two men brought a dispute to the Prophet (peace be upon him). The Messenger of Allah (peace be upon him) asked the claimant for evidence, but he had no evidence. So he asked the defendant to take an oath, and he swore by Allah, besides whom there is no deity. The Messenger of Allah (peace be upon him) said: 'You have indeed sworn a (false) oath, but Allah has forgiven you because of your sincere utterance of La ilaha illallah (There is no deity except Allah).'