Mustadrak al-Hakim

Mustadrak al-Hakim, or more properly al-Mustadrak `ala al-Sahihayn is a collection of hadith compiled by Imam Abu `Abdullah Muhammad ibn `Abdullah al-Hakim al-Naysaburi (d. 405 AH/1014 CE - rahimahullah). It is an important supplementary collection to Sahih al-Bukhari and Sahih Muslim, containing reports not included in those two works that al-Hakim judged to meet the conditions of one or both of them, or otherwise judged authentic. It contains about 9,000 reports arranged by topic. Later scholars, including al-Dhahabi, revised many of al-Hakim’s rulings.