falls squarely within a critical section: the Virtues of the Prophet’s Family (Ahl al-Bayt) and Virtues of the Companions (Manaqib al-Sahabah) , specifically regarding ‘Ali ibn Abi Talib (may Allah honor his face).
The key to understanding the value of lies in the margins. Al-Hakim often concludes a Hadith with: "This is a Sahih Hadith, not compiled by al-Bukhari and Muslim" (هذا حديث صحيح على شرطهما ولم يخرجاه). al-hakim al-mustadrak vol. 4 p. 398