"Indeed the accidental killing, the killing with a whip or stick, for it (the Diyah) is one hundred camels - a severe penalty - of which forty should be (she-camels) with their young in their wombs." (Using translation from Nasāʾī 4795)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ «أَلَا إِنَّ قَتِيلَ الْخَطَأِ قَتِيلَ السَّوْطِ وَالْعَصَا فِيهِ مِائَةٌ مِنَ الْإِبِلِ مُغَلَّظَةٌ أَرْبَعُونَ مِنْهَا فِي بُطُونِهَا أَوْلَادُهَا»