21-3 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Sa’ed ibn Abdullah, Abdullah ibn Ja’far al-Homayry, Muhammad ibn Yahya al-Attar and Ahmad ibn Idris quoted Ahmad ibn Muhammad ibn Isa and Muhammad ibn al-Hussein ibn Abil-Khat’tab, on the authority of Muhammad ibn Sin’an, on the authority of Hazifat ibn Mansoor, on the authority of Mu’az ibn Kasir, on the authority of Mu’az ibn Muslim al-Hara that Aba Abdullah as-Sadiq (MGB) said,

“The month of Ramazan is thirty days. I swear by God that it never is less.”