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

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

[Machine] The Messenger of Allah ﷺ said, "Whoever shelters a stray, he himself is stray until he identifies it."  

قَالَ رَسُولُ اللهِ ﷺ مَنْ آوَى ضَالَّةً فَهُوَ ضَالٌّ مَا لَمْ يُعَرِّفْهَا  

“The Messenger of Allah ﷺ said: ‘Whoever gives medical treatment, with no prior knowledge of medicine, is responsible (for any harm done).’” (Using translation from Ibn Mājah 3466)   

قَالَ رَسُولُ اللَّهِ ﷺ «مَنْ تَطَبَّبَ وَلَمْ يُعْرَفْ مِنْهُ طِبٌّ فَهُوَ ضَامِنٌ»  

[Machine] The translation of the given Arabic text is: The Messenger of Allah ﷺ said, "Whoever gives shelter to a lost person, he himself remains lost until he shows them the way (i.e., helps them find their way)." This narration has an authentic chain of narrators, and it has not been included in Sahih Bukhari.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «مَنْ آوَى ضَالَّةً فَهُوَ ضَالٌّ مَا لَمْ يُعَرِّفْهَا» صَحِيحُ الْإِسْنَادِ وَلَمْ يُخَرِّجَاهُ صحيح  

[Machine] On the authority of the Messenger of Allah ﷺ , he said, "Whoever shelters a stray, he is considered as a stray until he identifies it."  

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

"مَنْ آوَى ضَالَّةً فَهُو ضَالٌّ مَا لَم يُعرِّفْهَا".