Haydar Ibn Ibrahim al-Husayni al-Katib is an obscure scribe of the 16th century. A copy of the Divan of Mani from the Shaykh Safi shrine is in the Public Library in St. Petersburgh. It is signed Haydar-e Ibrahim (Haydar son of Ibrahim) al-Husayni and dated AH 961/1554 AD. A preface of an album in the National Library in Vienna is also similarly signed and dated AH 980/1581-2 AD (Mehdi Bayani, Ahval va Asar-e Khosh-Nevisan, Vol. I, Teheran, 1345 sh., pp. 171-2).