Nimran bin Jariyah narrates from his father (may Allah be pleased with him) that a man struck another man on his forearm with a sword and cut it off at a place other than the joint. He came to the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) ordered blood money. The man said: I want retaliation. He (peace and blessings be upon him) said: "May Allah bless you in it; take the blood money." And he (peace and blessings be upon him) did not grant him retaliation.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنايات / 16102