Sunan Sa'id ibn Mansur, or Sunan Sa'id bin Mansur or Sunan Sayeed bin Mansur (Arabic: سنن سعيد ابن منصور), is one of the Hadith book compiled in third century of the Muslim calendar.
It was written by Imam Sa'id ibn Mansur (died in 227 AH).
[1][2] It contains almost three thousand (3000) hadiths according to Al-Maktaba Al-Shamela.
It is one of the oldest Musnad (a kind of Hadith book) written.
It is written in third century of Islamic calendar and written before the Sahihain: (Sahih al-Bukhari and Sahih Muslim).