About Sunan an Nasa'i
Al-Nasā'ī (214 – 303 AH; c. 829 – 915 CE), full name Aḥmad ibn Shu`ayb ibn Alī ibn Sīnān Abū `Abd ar-Raḥmān al-Nasā'ī, was a noted collector of hadith (sayings of Muhammad), and wrote one of the six canonical hadith collections recognized by Sunni Muslims, Sunan al-Sughra, or "Al-Mujtaba", which he selected from his "As-Sunan al-Kubra". As well as 15 other books, 6 dealing with the science of hadith. Abu Abdurrahman Ahmed ibn Shuaib ibn Ali ibn Sinan ibn Bahr ibn Dinar Al-Khurusani was born in the year 215 A.H as the Imam clearly states himself (although some say 255 A.H or 214 A.H) in the city of Nasa, situated in Western Asia known at that time as Khurusan which was a centre for Islamic Knowledge where millions of Ulama'a were situated and Hadeeth and Fiqh was at its peak. Thus he primarily attended the gatherings and circles of knowledge (known as halqas') in his town and attained knowledge, especially Hadeeth from the Ulama'a. Thereafter his inspiration increased of traveling around the world to seek knowledge from other various scholars of different countries and cities. When he was 20 years old, he started traveling and made his first journey to Qutaibah. He covered the whole Arabian Peninsula seeking knowledge from the Ulama and Muhadditheen of Iraq, Kufa, Hijaz, Syria and Egypt . Finally he decided to stay in Egypt .