The statement of authenticity was not accepted by a number of prominent later Sunni scholars. made an abridged version of the collection named
Talkhis al-Mustadrak where he commented on its authenticity. It has become the habit of scholars today working in the field of hadîth, when compiling them and determining their authenticity, to say things like "It is authenticated by al-Hâkim and al-Dhahabî concurs". In doing so, they are referring to al-Dhahabi's Talkhîs, his abridgement of the Mustadrak that is often published along with it in its margins. Dhahabi also wrote: The Mustadrak contains a good number of hadîth that conform to the conditions of authenticity of both (al-Bukhârî and Muslim) as well as a number of hadîth conforming to the conditions of either one of them. Perhaps the total number of such hadîth comprises half the book. There is roughly another quarter of the hadîth that have authentic chains of transmission, but that have something else about them or that have some defect. As for the rest, and that is about a fourth, they are rejected and spurious narrations that are unauthentic. Some of those are fabrications. I came to know of them when I prepared an abridgement of the Mustadrak and pointed them out.
al-Dhahabi lamented: It would have been better if al-Hakim had never compiled it." states that
Mawdu'at al-Kubra is as unreliable in its attributing the grade of being "forged" to certain
ahadith as al-Hakim's Mustadrak is unreliable in its declaring the grade of "sound" or
Sahih to many ahadith. ==Defence on the Author==