The Shulchan Aruch paskens (OC 554) that it is forbidden to learn most parts of Torah on Tisha Beav, except for a few small sections about aveilut. The question is: the Shulchan Aruch doesn't explicitly mention Hilchot Teshuva, but would it be permissible to do so? The Rambam (Hilchot Taaniot) says that the point of fasts is to do Teshuva. Seemingly learning Hilchot Teshuva would fit directly in this theme. What do you guys think/ do you know of any sources? Thanks so much in advance.
Not only is it permissible, but it is correct to do so according to the Meiri (Moed Katan 21a- Aveilus) . The Meiri explains that learning things that arouses one to do teshuva is a good thing. See Piskei Teshuvos 554:2 for more sources.
Rav Eliyashiv in Ashrei HaIsh page. 485 is quoted as holding that one may learn divrei mussar even though it contains aggada,and Midrashei Chazal since one's intention is not to learn ,but rather arouse oneself to do teshuva which is the obligation of the day.
Text of the Meiri:
2Although he says not to on the first day... maybe Tisha BeAv (especially the morning) has that status?– Joel KJul 9, 2020 at 3:44
It seems that the Shulchan Aruch is not learning it's like the first day since be allows talmud Torah for certain topics. Jul 9, 2020 at 3:55
@talmidforlife, I dont know how to do text ,only picture of it,sry Jul 9, 2020 at 4:00
@Joel K there is also a whole machlokes about teffilin ,and it seems that really one should wear teffilin sonce its not like the first day ,the Tur brings this . Jul 9, 2020 at 4:05
2I don't see that the M'iri is on point. The question was about laws of t'shuva. The M'iri is discussing things that awaken one's heart to t'shuva. Of course one should learn the laws in order to be able to act on them, but I wouldn't say it awakens one's heart to t'shuva: one's mind, yes. YMMV of course, but I suspect what I say is true for most people.– msh210 ♦Jul 9, 2020 at 10:24