Sunan an-Nasa'i

As-Sunan as-Sughra (al-Mujtaba), considered to contain one of the lowest proportions of weak narrations among the Kutub al-Sittah, consists of Imam an-Nasa'i's own selections from his larger as-Sunan al-Kubra. Owing to his rigour in criticising narrators, some scholars rank it in authenticity immediately after the Sahihayn.