(1) In the Introduction to Sahih Muslim with al-Nawawi’s commentary, p. 16, al-Hakim Abu Abd Allah al-Naysaburi states in his work Al-Madkhal ila Maʿrifat al-Mustadrak: “Al-Bukhari narrated in al-Jamiʿ al-Sahih from 434 teachers whom Muslim did not cite, whereas Muslim relied on 625 teachers whom al-Bukhari did not use in al-Jamiʿ al-Sahih. Allah knows best.” (2) Al-Nawawi notes in Tahdhib al-Asma wa-l-Lughat 1/75/1 that the total number of fully-chained hadiths in Sahih al-Bukhari, counting repetitions, is 7,573. Its author entitled the work Al-Jamiʿ al-Musnad al-Sahih al-Mukhtasar min Umur Rasul Allah, wa-Sunanihi, wa-Ayyamihi (“The Concise, Sound, Connected Compendium of the Matters, Practices, and Days of the Messenger of Allah”). Scholars affirm that it is the first book devoted solely to rigorously authentic hadith. They universally regard the Sahihs of al-Bukhari and Muslim as the most reliable collections, the majority giving precedence to Sahih al-Bukhari for both authenticity and breadth of benefit. Al-Hafiz Abu ʿAli al-Naysaburi and some Maghribi scholars preferred Sahih Muslim, a view the scholars rejected, the correct position being the superiority of Sahih al-Bukhari. … Al-Nasai said: “It is the most precise …”