when the Messenger of Allah entered Makkah on the Day of the Conquest, he said: "Indeed, every accidental killing on purpose, or resembling on purpose - killing with a whip or stick, for it are forty (she-camels) which their young in their wombs." (Using translation from Nasāʾī 4796)
عَنْ رَجُلٍ مِنْ أَصْحَابِ النَّبِيِّ ﷺ أَنَّ رَسُولَ اللهِ ﷺ لَمَّا دَخَلَ مَكَّةَ يَوْمَ الْفَتْحِ قَالَ «أَلَا وَإِنَّ كُلَّ قَتِيلِ خَطَإِ الْعَمْدِ أَوْ شِبْهِ الْعَمْدِ قَتِيلَ السَّوْطِ وَالْعَصَا فِيهِ مِائَةٌ مِنَ الْإِبِلِ مِنْهَا أَرْبَعُونَ فِي بُطُونِهَا أَوْلَادُهَا»