Al-hakim Al-mustadrak Vol. 4 P. - 398

Why does this matter for the average Muslim or student of knowledge? Because teaches us a critical lesson: The authentication of a hadith is not monolithic. Imam al-Hakim, with his encyclopedic mind, said "sahih." Imam al-Dhahabi, his student’s student, said "da‘if." And Shaykh al-Islam Ibn Hajar al-‘Asqalani, in Talkhis al-Habir , tilted toward the latter.

This narration is frequently cited by scholars and researchers to explain: al-hakim al-mustadrak vol. 4 p. 398