(45) The Book of Oaths (qasamah), Retaliation and Blood Money
كتاب القسامة
(33, 34) Chapter: Mentioning The Differences Reported From Khalid Al-Hadha
(33, 34) باب ذِكْرِ الاِخْتِلاَفِ عَلَى خَالِدٍ الْحَذَّاءِ
Sunan an-Nasa'i 4793 
It was narrated from Abdullah bin 'Amr that the prophet said:
"Indeed the accidental killing, which seems intentional, with a whip or a stick, (the Diyah) is one hundred camels, of which forty should be (she-camels) with their young in their wombs."
أَخْبَرَنِي يَحْيَى بْنُ حَبِيبِ بْنِ عَرَبِيٍّ، قَالَ أَنْبَأَنَا حَمَّادٌ، عَنْ خَالِدٍ، - يَعْنِي الْحَذَّاءَ - عَنِ الْقَاسِمِ بْنِ رَبِيعَةَ، عَنْ عُقْبَةَ بْنِ أَوْسٍ، عَنْ عَبْدِ اللَّهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ أَلاَ وَإِنَّ قَتِيلَ الْخَطَإِ شِبْهِ الْعَمْدِ مَا كَانَ بِالسَّوْطِ وَالْعَصَا مِائَةٌ مِنَ الإِبِلِ أَرْبَعُونَ فِي بُطُونِهَا أَوْلاَدُهَا ‏"‏ ‏.‏
Grade :  Sahih (Darussalam)
Reference : Sunan an-Nasa'i 4793
In-book reference : Book 45, Hadith 88
English translation : Vol. 5, Book 45, Hadith 4797