This has already passed under number (16172).
Ibn Shihab (may Allah have mercy on him) said that Sayyiduna Umar (may Allah be pleased with him) fixed, in terms of gold, 1000 dinars, which the people of knowledge after him also maintained, and upon the owners of camels 100 camels. Imam al-Shafi'i (may Allah have mercy on him) said: The diyah is to be paid only in dirhams and dinars.
The Shaykh said: As for the diyah that Sayyiduna Umar (may Allah be pleased with him) fixed in other than dirhams and dinars, that was with the consent of the heirs of the slain or of the killer.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16174