A lady slaughtered a sheep with a stone and then the Prophet ﷺ was asked about it and he permitted it to be eaten.  

أَنَّ امْرَأَةً ذَبَحَتْ شَاةً بِحَجَرٍ فَسُئِلَ النَّبِيُّ ﷺ عَنْ ذَلِكَ فَأَمَرَ بِأَكْلِهَا وَقَالَ اللَّيْثُ حَدَّثَنَا نَافِعٌ أَنَّهُ سَمِعَ رَجُلاً مِنَ الأَنْصَارِ يُخْبِرُ عَبْدَ اللَّهِ عَنِ النَّبِيِّ ﷺ أَنَّ جَارِيَةً لِكَعْبٍ بِهَذَا  

A slave girl belonging to Kaʿb used to graze some sheep at Sl'a (mountain). Once one of her sheep was dying. She reached it (before it died) and slaughtered it with a stone. The Prophet ﷺ was asked, and he said, "Eat it."  

أَخْبَرَهُ أَنَّ جَارِيَةً لِكَعْبِ بْنِ مَالِكٍ كَانَتْ تَرْعَى غَنَمًا بِسَلْعٍ فَأُصِيبَتْ شَاةٌ مِنْهَا فَأَدْرَكَتْهَا فَذَبَحَتْهَا بِحَجَرٍ فَسُئِلَ النَّبِيُّ ﷺ فَقَالَ كُلُوهَا