Sayyiduna Salamah bin Akwa’ (may Allah be pleased with him) narrates that during the time of the Messenger of Allah (peace and blessings be upon him), in the month of Ramadan, whoever wished would fast and whoever wished would leave the fast, and would feed a poor person as compensation. Until this verse was revealed «‏‏‏‏فَمَن شَهِدَ مِنكُمُ الشَّهْرَ فَلْيَصُمْهُ» ‏‏‏‏ [ سورة البقرة: 185 ] “So whoever among you is present in the month (at home), he should fast in it.”