As-Sunan al-Kubra, (Arabic: سنن الكبرى), is a hadith book collected by Imam Al-Nasa'i (214 – 303 AH),[1][2][3] not to be confused with the same titled book by Imam Al-Bayhaqi.
As-Sunan al-Kubra is the larger collection of the Sunan al-Nasa'i, having almost twelve thousand (12000) hadiths compared to the almost six thousand (6000) hadiths in the summarised version.
[4] The shorter collection is considered the next most authentic book of hadith (narrations of Muhammad) after the Sahihain (Sahih al-Bukhari & Sahih Muslim) within the six books, by most scholars of hadith.
[1][5] Among those who have written commentaries on this hadith collection are: