Bulugh al-Maram 941

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

مَنْ آوَى ضَالَّةً فَهُوَ ضَالٌّ مَا لَمْ يُعَرِّفْهَا ‏"

Narrated by Zayd ibn Khālid al-Juhani

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

I accompanied Jarir at Bawazij. The shepherd brought the cows. Among them there was a cow that was not one of them. Jarir asked him: What is this? He replied: This was mixed with the cows and we do not know to whom it belongs. Jarir said: Take it out. I heard the Messenger of Allah (ﷺ) say: No one…

لاَ يَأْوِي الضَّالَّةَ إِلاَّ ضَالٌّ ‏"

Narrated by Jarīr ibn ‘Abdullah

“I was with my father in Bawazij and the cows came back in the evening. He saw a cow did not recognize it. He said: 'What is this?' He said: 'A cow that joined the herd.' And he issued orders that it be driven away until it disappeared from view. Then he said: 'I heard the Messenger of Allah (ﷺ)…

"‏ لاَ يُئْوِي الضَّالَّةَ إِلاَّ ضَالٌّ ‏"

Narrated by Jarīr ibn ‘Abdullah