Narrated Abdullah ibn Masud: The Prophet ﷺ said: The blood-wit for accidental killing should be twenty she-camels which had entered their fourth year, twenty she-camels which had entered their fifth year, twenty she-camels which had entered their second year, twenty she-camels which had entered their third year, and twenty male camels which had entered their second year. It does not beyond Ibn Masud.
Hadith Referenceسنن ابي داود / كتاب الديات / 4545
Hadith Gradingالألبانی:ضعيف | زبیر علی زئی:ضعيف, إسناده ضعيف, ترمذي (1386) نسائي (4806) ابن ماجه (2631), حجاج بن أرطاة ضعيف مدلس وعنعن, انوار الصحيفه، صفحه نمبر 160
Hadith Takhrij« سنن الترمذی/الدیات 1 (1386)، سنن النسائی/القسامة 28 (4806)، سنن ابن ماجہ/الدیات 6 (2631)، (تحفة الأشراف: 9198)، وقد أخرجہ: مسند احمد (1/384، 450)، دی/ الدیات 13 (2412) (ضعیف) » (سند میں حجاج بن ارطاة مدلس اور کثیر الخطاء راوی ہیں اور خشف طائی مجہول)
´Narrated Ibn Mas'ud:` "The Messenger of Allah (ﷺ) judged for the accidental blood-Money: Twenty Bint Makhad, twenty make Ibn Makhad, twenty Bint Labunm twenty Jadha'ah, and twenty Hiqqah. (Another chain) with similar meaning.
Shaykh Dr. Abdur Rahman Freywai
Explanation: 1: There are three types of killing: 1- Intentional killing (qatl ‘amd): That is, deliberately using such a weapon by which killing generally occurs. In this case, retribution (qisas) is taken from the killer. 2. Accidental killing (qatl khata’): That is, killing occurs by mistake. In the above hadith, the blood money (diyah) for this type of killing is mentioned. 3. Killing resembling intentional (qatl shibh al-‘amd): This is the type of killing in which such things are used that do not generally cause death, such as a stick or a whip, etc. In this, aggravated blood money (diyat mughallazah) is taken, and this is one hundred camels, among which forty must be pregnant she-camels.
2: The wealth that is given in compensation for the killing of a soul or the loss of any limb of the body is called diyah (blood money).
3: A she-camel that has completed one year of age.
4: A she-camel that has completed two years of age.
5: A camel that has completed four years of age.
6: A camel that has completed three years of age.
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 1386