Muḥammad ibn al-Ḥusayn Bayhaqī‏‏ al-Kaydarī

The author declares in his introduction that he had been thinking of putting together a book on the virtues of the Imams, and so when he learned of the book called Manāhij al-munahhaj by Muḥammad ibn al-Ḥusayn Bayhaqī‏‏ al-Kaydarī, he went on to follow it and create his own work. — Multiple dates; Unknown place of origin Wadh.Minasian 49