Musannaf Ibn Abi Shayba 18:298

Abu Bakr narrated to us, he said: Abd al-Rahim ibn Sulayman narrated to us, from Zakariyya, from Firas, from Amir, from Masruq, that he was asked about a one-eyed man whose [remaining] eye was gouged out. He said: "I do not pay the blood money for a killing of Allah. Upon the one who caused it is only the blood money for one eye."