6. We were told by my father, may Allah be pleased with him, that he said: We were told by Sa’d bin Abdullah, from Ya’qub bin Yazid, from Abbas bin Hilal, that he said: I asked al-Rida, peace be upon him, about the saying of Allah, Exalted and Glorious is He: «Allah is the Light of the Heavens and the earth» (24:35) so he said: A Guide to the people of Heaven, and a Guide to the people of the earth. In the narration of al-Barqi: The Guidance of those who are in the Heavens, and a Guidance to those who are in the earth.