The Dispute of Rav Ovadia Yosef and Rav Ben Tzion Abba Shaul

Rabbi Daniel Glatstein explores the halachic question of whether one is obligated to study Torah on Tisha B’Av, given that there are certain permitted topics one may study on the day of mourning.

Rabbi Ovadia Yosef argues that one is obligated to learn the permitted topics on Tisha B’Av, whereas Mahari Aayash and others argue there is no obligation at all, suggesting the day is a break from standard requirements.

R’ Glatstein explains the logic behind these views, noting that for some, the essence of the mitzvah of Torah study is finding joy in it. If the subject matter is restricted and legislated, some authorities argue it no longer fulfills the fundamental nature of the mitzvah.

While there is a debate on obligation, even those who argue against an obligation generally encourage using the time to learn if one is capable, rather than simply wasting time.