Al-Mustadrak, compiled by Imam Al-Hakim al-Nisapuri (رَحِمَهُ ٱللَّٰهُ) (d. 1014 CE / 405 AH), aims to supplement the works of Sahih Bukhari and Sahih Muslim. It includes hadiths that meet their stringent criteria for authenticity, thus providing valuable additions to Islamic teachings. It is available in English, Urdu, and Roman Urdu.