(11) Business Transactions
كتاب البيوع
(18a) Chapter: Finds - Section 1
(18) باب اللقطة - الفصل الأول
Mishkat al-Masabih 3034 
He reported God’s Messenger as saying, “He who gives refuge to a stray is astray himself as long as he does not make the matter known.” Muslim transmitted it.
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ آوَى ضَالَّةً فَهُوَ ضَالٌّ مَا لم يعرفهَا» . رَوَاهُ مُسلم
 صَحِيحٌ  (الألباني)حكم :
Reference : Mishkat al-Masabih 3034
In-book reference : Book 11, Hadith 268