Quran 2:185 states that Ramadan is the month in which the Quran was revealed.
The verse appears in Surah Al-Baqarah, the Quran’s second chapter. It describes Ramadan as the month in which the Quran was sent down as guidance for humanity, with clear proofs and a standard for distinguishing right from wrong.
The verse is also central to the Quran’s explanation of fasting. It instructs those present during Ramadan to fast, while allowing exemptions for people who are ill or traveling, with missed days made up later. This is why 2:185 is sometimes confused with other famous verses about Islamic belief or revelation.
The Quran was not delivered to Muhammad as one complete book over a single moment. Islamic tradition holds that revelation began during Ramadan and continued gradually for about 23 years. Surah Al-Qadr also connects revelation with a blessed night, but 2:185 is the verse that explicitly identifies Ramadan as the month of revelation.