In which Hijri year was Fasting (Sawm) during the month of Ramadan made obligatory for Muslims?

Explanation

Fasting in Ramadan was ordained as an obligatory duty in the month of Sha’ban in 2 AH (624 AD) via Surah Al-Baqarah (Verse 183). This fundamental pillar of Islam mandates abstinence from dawn to sunset. In FPSC/PPSC papers, remember that Zakat and the change of Qibla were also commanded in 2 AH, whereas Hajj became obligatory in 9 AH.