Source Sheet Is the Gid Hanashe mutar or assur Bahana'a? How many Brachos do we say on Tefillin according to Zohar vs most poskim? Do we wear Tefillin on Chol Hamoed? Does the one who goes up for an Aliyah read aloud or quietly? Do you have to hear yourself say the words during Shema and Shmone Esrei? What do you do if you walk in to shul in middle of davening? What is the source for the Bracha of Hanosen Laya'ef Koach and do we say it? Should you wear Tzitzis at night? Which way should your bed face?