question #3 Sahih Muslim 1145a, Book 13, Hadith 191 : What options were available to those who were reluctant to fast before the ruling was abrogated?

“And as for those who can fast (but do not) expiation is the feeding of a needy person” (ii. 183), (he who liked to observe fast did observe it) and he who felt reluctant to observe it ate and expiated till the verse was revealed which abrogated it.