 Al-Mustadrak alaa al-Sahihain

Al-Mustadrak ala aṣ-Ṣaḥeeḥayn () or Mustadrak Al Hakim () is a five volume hadith collection written by Hakim al-Nishapuri (Nishapur is located in Iran).He wrote it in the year AH 393 (1002–1003 CE), when he was 72 years old.