12. Muhammad ibn al-Hasan ibn Ahmad ibn al-Walid said: Muhammad ibn al-Hasan al-Saffar, on the authority of Muhammad ibn `Isa ibn `Ubayd, on the authority of Yunus ibn `Abd al-Rahman that I said to Abu al-Hasan al-Rida : “It has been related to us that Allah is Knowledge as there is no ignorance in Him. Allah is life as there is no death in Him. And Allah is Light as there is no darkness in Him.” He replied: “That is exactly how He is.”