What is the ruling on someone who broke their fast in Ramadan out of ignorance of the ruling on breaking the fast, then learned of it years later—do they owe both expiation and make-up, or make-up only?

Whoever intentionally commits one of the acts that invalidate the fast must make up for it (qada'), except for one who has sexual intercourse during Ramadan daylight hours, in which case expiation (kaffarah) is required. As for one who commits such acts out of ignorance or forgetfulness, neither qada' nor kaffarah is required of them.