حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، أَخْبَرَنَا عَطَاءُ بْنُ السَّائِبِ، عَنْ أَبِي يَحْيَى، عَنِ ابْنِ عَبَّاسٍ، ‏:‏ أَنَّ رَجُلَيْنِ، اخْتَصَمَا إِلَى النَّبِيِّ صلى الله عليه وسلم فَسَأَلَ النَّبِيُّ صلى الله عليه وسلم الطَّالِبَ الْبَيِّنَةَ، فَلَمْ تَكُنْ لَهُ بَيِّنَةٌ فَاسْتَحْلَفَ الْمَطْلُوبَ فَحَلَفَ بِاللَّهِ الَّذِي لاَ إِلَهَ إِلاَّ هُوَ، فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏:‏ ‏"‏ بَلَى قَدْ فَعَلْتَ، وَلَكِنْ قَدْ غُفِرَ لَكَ بِإِخْلاَصِ قَوْلِ لاَ إِلَهَ إِلاَّ اللَّهُ ‏"‏ ‏.‏ قَالَ أَبُو دَاوُدَ ‏:‏ يُرَادُ مِنْ هَذَا الْحَدِيثِ أَنَّهُ لَمْ يَأْمُرْهُ بِالْكَفَّارَةِ

Narrated Abdullah ibn Abbas

Two men brought their dispute to the Prophet (ﷺ). The Prophet (ﷺ) asked the plaintiff to produce evidence, but he had no evidence. So he asked the defendant to take an oath, and he swore by Allah, besides Whom there is none worthy of worship. The Messenger of Allah (ﷺ) said: "Indeed, you have done it, but you have been forgiven because of the sincerity of your statement: 'There is no god but Allah.'"

Abu Dawud said: What is intended by this tradition is that he did not command him to make atonement.