he caught two rabbits and he could not find a knife with which to slaughter then, so he slaughtered them with Marwah. Then he came to the Prophet and said: "O Mesenger of Allah! I caught two rabbits but I could not find a knife with which to slaughter them, so I slaughtered them with Marwah;l can I eat them?" He said: "Eat (them)." (Using translation from Nasāʾī 4399)  

أَنَّهُ أَصَابَ أَرْنَبَيْنِ فَلَمْ يَجِدْ حَدِيدَةً يَذْبَحُهُمَا بِهَا فَذَكَّاهُمَا بِمَرْوَةٍ فَأَتَى النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللهِ إِنِّي اصْطَدْتُ أَرْنَبَيْنِ فَلَمْ أَجِدْ حَدِيدَةً أُذَكِّيهِمَا بِهَا فَذَكَّيْتُهُمَا بِمَرْوَةٍ أَفَآكُلُ؟ قَالَ «كُلْ»  

It was narrated from Zaid bin Thabit that a wolf bit a sheep, and they slaughtered it with a sharp-edged stone, and the Messenger of Allah ﷺ allowed them to eat it. (Using translation from Ibn Mājah 3176)  

أَنَّ ذِئْبًا نَيَّبَ فِي شَاةٍ فَذَبَحُوهَا بِمَرْوَةٍ «فَرَخَّصَ النَّبِيُّ ﷺ فِي أَكْلِهَا»