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.
bayhaqi:10802Abū Bakr al-Ardastānī > Abū Naṣr al-ʿIrāqī > Sufyān b. Muḥammad > ʿAlī b. al-Ḥasan > ʿAbdullāh b. al-Walīd > Sufyān > al-Layth > Mujāhid > Ibn ʿUmar

[Machine] A man sold a saddle to another man and did not receive its price. Then, the owner of the saddle wanted to sell it, but the one who sold it wanted to take it back without giving back what he had sold from it. So, Ibn Umar was asked about this, and he did not see any problem with it. Ibn Umar said: Perhaps if he sold it to someone else, he would have sold it for that price or even less. And Sufyan narrated from Hisham from Ibn Sirin that a man sold a camel to another man and said: Accept your camel and thirty dirhams from me. They asked Shurayh, and he did not see any problem with it.  

البيهقي:١٠٨٠٢أَخْبَرَنَا أَبُو بَكْرٍ الْأَرْدَسْتَانِيُّ ثنا أَبُو نَصْرٍ الْعِرَاقِيُّ ثنا سُفْيَانُ بْنُ مُحَمَّدٍ ثنا عَلِيُّ بْنُ الْحَسَنِ ثنا عَبْدُ اللهِ بْنُ الْوَلِيدِ ثنا سُفْيَانُ ثنا اللَّيْثُ عَنْ مُجَاهِدٍ عَنِ ابْنِ عُمَرَ

أَنَّ رَجُلًا بَاعَ مِنْ رَجُلٍ سَرْجًا وَلَمْ يَنْقُدْ ثَمَنَهُ فَأَرَادَ صَاحِبُ السَّرْجِ الَّذِي اشْتَرَاهُ أَنْ يَبِيعَهُ فَأَرَادَ الَّذِي بَاعَهُ أَنْ يَأْخُذَهُ بِدُونِ مَا بَاعَهُ مِنْهُ فَسَأَلَ عَنْ ذَلِكَ ابْنَ عُمَرَ فَلَمْ يَرَ بِهِ بَأْسًا وَقَالَ ابْنُ عُمَرَ فَلَعَلَّهُ لَوْ بَاعَهُ مِنْ غَيْرِهِ بَاعَهُ بِذَلِكَ الثَّمَنِ أَوْ أَنْقَصَ 10802 وَعَنْ سُفْيَانَ ثنا هِشَامٌ عَنِ ابْنِ سِيرِينَ أَنَّ رَجُلًا بَاعَ بَعِيرًا مِنْ رَجُلٍ فَقَالَ اقْبَلْ مِنِّي بَعِيرَكَ وَثَلَاثِينَ دِرْهَمًا فَسَأَلُوا شُرَيْحًا فَلَمْ يَرَ بِذَلِكَ بَأْسًا