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
bayhaqi:12078 – Abū ʿAbdullāh al-Ḥāfiẓ And ʾAbū Zakariyyā b. Abū Isḥāq Waʾabū Bakr b. al-Ḥasan > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Muḥammad b. ʿAbdullāh b. ʿAbd al-Ḥakam > Ibn Wahb > ʿAmr b. al-Ḥārith > Bakr b. Sawādah > Abū Sālim al-Jayshānī > Zayd b. Khālid al-Juhanī ؓ

[Machine] "The Messenger of Allah ﷺ said: "Whoever shelters a stray is considered lost until he reveals its identity.""  

البيهقي:١٢٠٧٨ – أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ وَأَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ وَأَبُو بَكْرِ بْنُ الْحَسَنِ قَالُوا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا مُحَمَّدُ بْنُ عَبْدِ اللهِ بْنِ عَبْدِ الْحَكَمِ أنبأ ابْنُ وَهْبٍ حَدَّثَنِي عَمْرُو بْنُ الْحَارِثِ عَنْ بَكْرِ بْنِ سَوَادَةَ عَنْ أَبِي سَالِمٍ الْجَيْشَانِيِّ عَنْ زَيْدِ بْنِ خَالِدٍ الْجُهَنِيِّ ؓ

عَنْ رَسُولِ اللهِ ﷺ أَنَّهُ قَالَ مَنْ آوَى ضَالَّةً فَهُوَ ضَالٌّ مَا لَمْ يُعَرِّفْهَا  

رَوَاهُ مُسْلِمٌ فِي الصَّحِيحِ عَنْ أَبِي الطَّاهِرِ عَنِ ابْنِ وَهْبٍ

See similar narrations below:

Collected by Muslim
muslim:1725 – Abū al-Ṭāhir And Yūnus b. ʿAbd al-Aʿlá > ʿAbdullāh b. Wahb > ʿAmr b. al-Ḥārith > Bakr b. Sawādah > Abū Sālim al-Jayshānī > Zayd b. Khālid al-Juhanī

He who found a stray article is himself led astray if he does not advertise it.  

مسلم:١٧٢٥ – وَحَدَّثَنِي أَبُو الطَّاهِرِ وَيُونُسُ بْنُ عَبْدِ الأَعْلَى قَالاَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ قَالَ أَخْبَرَنِي عَمْرُو بْنُ الْحَارِثِ عَنْ بَكْرِ بْنِ سَوَادَةَ عَنْ أَبِي سَالِمٍ الْجَيْشَانِيِّ عَنْ زَيْدِ بْنِ خَالِدٍ الْجُهَنِيِّ

عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ قَالَ مَنْ آوَى ضَالَّةً فَهُوَ ضَالٌّ مَا لَمْ يُعَرِّفْهَا