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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bukhari:3068 – Muḥammad b. Bashhār > Yaḥyá > ʿUbaydullāh > Nāfiʿ > ʿAbd Ibn ʿUmar Abaq Falaḥiq Bi-al-Rrūm Faẓahar ʿAlayh Khālid b. al-Walīd Faraddah > ʿAbdullāh

Once a slave of Ibn ʿUmar fled and joined the Byzantine. Khalid bin Al-Walid got him back and returned him to ʿAbdullah (bin ʿUmar). Once a horse of Ibn ʿUmar also ran away and followed the Byzantines, and he (i.e. Khalid) got it back and returned it to ʿAbdullah.  

البخاري:٣٠٦٨ – حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللَّهِ قَالَ أَخْبَرَنِي نَافِعٌ أَنَّ عَبْدًا لاِبْنِ عُمَرَ أَبَقَ فَلَحِقَ بِالرُّومِ فَظَهَرَ عَلَيْهِ خَالِدُ بْنُ الْوَلِيدِ فَرَدَّهُ عَلَى عَبْدِ اللَّهِ

وَأَنَّ فَرَسًا لاِبْنِ عُمَرَ عَارَ فَلَحِقَ بِالرُّومِ فَظَهَرَ عَلَيْهِ فَرَدُّوهُ عَلَى عَبْدِ اللَّهِ قَالَ أَبُو عَبْد اللَّهِ عَارَ مُشْتَقٌّ مِنْ الْعَيْرِ وَهُوَ حِمَارُ وَحْشٍ أَيْ هَرَبَ