2. Question: After Chatzos of Tisha b’av when one puts on tallis and tefillin, why can you say verses people have a custom of saying upon putting on tallis and tefillin but one should not say Shema and the parsha of “kadesh” upon putting on tallis and tefillin?
A. The Mishna Berura (555:1:5) says that by mincha one should put on tallis and tefillin and say a blessing on them but should not recite the 3 paragraphs of Shema or the parsha of “kadesh” because at this point it is like reading Torah, (since the mitzvah of krias shema is in the morning) and Torah learning is forbidden the entire day of Tisha b’av.
B. In Dirshu footnote 5 in the name of Rav Chaim Kanievsky, he says one can recite the verses that there is a custom to recite upon putting on tallis and tefillin.
C. Halacha is normally very strict with wearing tallis and tefillin while saying Shema because they are testimony to belief in Hashem since tallis and tefillin are mentioned in the 3 paragraphs of Shema.
Answer: Because the verses recited upon putting on tallis and tefillin are a custom then it is not considered Torah learning but since the mitzvah of krias Shema has passed by mincha then it’s just considered Torah learning which is forbidden on Tisha b’av and it is only proper to have tallis and tefillin on in the morning when krias Shema is recited and not vice versa, i.e Shema must be recited while wearing tallis and tefillin.