Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: A man wounded another man's thigh. He came to the Prophet (peace and blessings be upon him) seeking retaliation, and he (peace and blessings be upon him) said: "First get well." He demanded again, and he (peace and blessings be upon him) said: "Get well." He demanded again, so he (peace and blessings be upon him) gave him retaliation. Some time later the man who had taken retaliation came and said: My leg has become paralysed. He (peace and blessings be upon him) said: "You have taken your right."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنايات / 16114