Hazrat Saeed bin Jubair narrates that Hazrat Aisha (may Allah be pleased with her) and Hazrat Hafsa (may Allah be pleased with her) kept a fast and then broke it. The Holy Prophet (peace and blessings be upon him) ordered them to make up for that fast.

Hazrat Usman Bati narrates that Hazrat Anas bin Sirin fasted on the Day of Arafah, but he became extremely thirsty and broke his fast. After that, he asked many companions of the Prophet about this matter, and all of them instructed him to make up for it by fasting one day in compensation.

Hazrat Ibn Abbas (may Allah be pleased with both of them) says that for breaking a voluntary fast, one should make up for it by fasting one day.

Hazrat Abdur Rahman bin Yazid bin Jabir narrates that I asked Hazrat Mak’hool about a person who keeps a fast and then breaks it. He replied that he will make up for one day.

Hasan says that if a person has eaten suhoor, then fasting becomes obligatory upon him; if he breaks the fast, then making it up (qada) is necessary for him.

Hazrat Abdullah bin Muslim narrates that if Hazrat Ata and Hazrat Mujahid went to meet someone and they were fasting, and in that state they were invited to eat, they would break their fast and say that they would make up for it by fasting another day.