صحيح البخاري Sahih Bukhari كتاب الجهاد والسير The Book of Jihad (Fighting For Allah’S Cause)
بَابُ إِذَا غَنِمَ الْمُشْرِكُونَ مَالَ الْمُسْلِمِ ثُمَّ وَجَدَهُ الْمُسْلِمُ:

(187) Chapter. If Al-Mushrikun take the property of a Muslim as war booty and later on the Muslim gets it back (on overcoming them), (does the owner have the right to get it back or should it be included in the war booty gained by the Muslims)?

3 hadith
Hadith 3067
قَالَ ابْنُ نُمَيْرٍ : حَدَّثَنَا عُبَيْدُ اللَّهِ ، عَنْ نَافِعٍ ، عَنْ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا ، قَالَ : " ذَهَبَ فَرَسٌ لَهُ فَأَخَذَهُ الْعَدُوُّ فَظَهَرَ عَلَيْهِ الْمُسْلِمُونَ فَرُدَّ عَلَيْهِ فِي زَمَنِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَأَبَقَ عَبْدٌ لَهُ ، فَلَحِقَ بِالرُّومِ فَظَهَرَ عَلَيْهِمُ الْمُسْلِمُونَ فَرَدَّهُ عَلَيْهِ خَالِدُ بْنُ الْوَلِيدِ بَعْدَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ " .
Narrated Nafi' (ra): A horse of Ibn 'Umar fled and the enemy took it. Then the Muslims conquered the enemy and the horse was returned to him during the lifetime of Allah's Messenger (saws). And also, once a slave of Ibn 'Umar (ra) fled and joined the Byzantines, and when the Muslims conquered them, Khalid bin Al-Walid returned the slave to him after the death of the Prophet (saws).
Hadith Reference Sahih Bukhari / The Book of Jihad (Fighting For Allah’S Cause) / Hadith: 3067
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 3068
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ ، حَدَّثَنَا يَحْيَى ، عَنْ عُبَيْدِ اللَّهِ ، قَالَ : أَخْبَرَنِي نَافِعٌ : أَنَّ " عَبْدًا لِابْنِ عُمَرَ أَبَقَ فَلَحِقَ بِالرُّومِ فَظَهَرَ عَلَيْهِ خَالِدُ بْنُ الْوَلِيدِ فَرَدَّهُ عَلَى عَبْدِ اللَّهِ ، وَأَنَّ فَرَسًا لِابْنِ عُمَرَ عَارَ فَلَحِقَ بِالرُّومِ فَظَهَرَ عَلَيْهِ ، فَرَدُّوهُ عَلَى عَبْدِ اللَّهِ " ، قَالَ أَبُو عَبْد اللَّهِ : عَارَ مُشْتَقٌّ مِنَ الْعَيْرِ وَهُوَ حِمَارُ وَحْشٍ أَيْ هَرَبَ .
Narrated Nafi`: Once a slave of Ibn `Umar fled and joined the Byzantine. Khalid bin Al-Walid got him back and returned him to `Abdullah (bin `Umar). Once a horse of Ibn `Umar also ran away and followed the Byzantines, and he (i.e. Khalid) got it back and returned it to `Abdullah.
Hadith Reference Sahih Bukhari / The Book of Jihad (Fighting For Allah’S Cause) / Hadith: 3068
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 3069
حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ ، حَدَّثَنَا زُهَيْرٌ ، عَنْ مُوسَى بْنِ عُقْبَةَ ، عَنْ نَافِعٍ ، عَنْ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا ، " أَنَّهُ كَانَ عَلَى فَرَسٍ يَوْمَ لَقِيَ الْمُسْلِمُونَ وَأَمِيرُ الْمُسْلِمِينَ يَوْمَئِذٍ خَالِدُ بْنُ الْوَلِيدِ بَعَثَهُ أَبُو بَكْرٍ ، فَأَخَذَهُ الْعَدُوُّ فَلَمَّا هُزِمَ الْعَدُوُّ رَدَّ خَالِدٌ فَرَسَهُ " .
Narrated Ibn `Umar: That he was riding a horse on the day, the Muslims fought (against the Byzantines), and the commander of the Muslim army was Khalid bin Al-Walid who had been appointed by Abu Bakr. The enemy took the horse away, and when the enemy was defeated, Khalid returned the horse to him.
Hadith Reference Sahih Bukhari / The Book of Jihad (Fighting For Allah’S Cause) / Hadith: 3069
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة