Narrated Ibn `Umar:
The Prophet (ﷺ) said, "We are an illiterate nation; we neither write, nor know accounts. The month is like this and this, i.e. sometimes of 29 days and sometimes of thirty days."
Reference | : Sahih al-Bukhari 1913 |
In-book reference | : Book 30, Hadith 23 |
USC-MSA web (English) reference | : Vol. 3, Book 31, Hadith 137 |
(deprecated numbering scheme) |