Hadith 13:39
'Abdallah b. ‘Amr reported God's Messenger as saying, “The blood wit for unintentional murder which resembles intentional, such as is done with a whip and a stick, is a hundred camels, forty of which are pregnant.” Nasa'i, Ibn Majah and Darimi transmitted it, and Abu Dawud transmitted it both on his authority and on that of Ibn ‘Umar. Sharh as-sunna has the wording in al-Masabih on the authority of Ibn ‘Umar.
عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: " أَلَا إِنَّ دِيَةَ الْخَطَأِ شِبْهِ الْعَمْدِ مَا كَانَ بِالسَّوْطِ وَالْعَصَا مِائَةٌ مِنَ الإِبلِ: مِنْهَا أربعونَ فِي بطونِها أولادُها " رَوَاهُ النسائيُّ وَابْن مَاجَه والدارمي وَرَوَاهُ أَبُو دَاوُد عَنهُ وَابْن مَاجَه وَعَن ابْن عمر. وَفِي «شَرْحِ السُّنَّةِ» لَفْظُ «الْمَصَابِيحِ» عَنِ ابْنِ عمر
Original Reference: Mishkat al-Masabih 3490, 3491