The book Jalāʾ al-abṣār(The Clear-Sightedness) by Muʿtazilī theologian al-Ḥākim Abū Saʿd/Sa‘īd al-Muḥsin/al-Muḥassin b. Muḥammad b. Karrāma al-Jushamī al-Bayhaqī (413-494/1022-1101) is a compendium of the lessons the author gave at the Jusham Mosque in Nishapur. They were given after the Friday Prayer over a period of three years from Ramadan 478/Dec-Jan 1086 to Ramadan 481/Dec 1088. The lessons were held over sixty sessions.