Definition of the requisite "Clean Body": Shabbat 130a
Urinating while wearing Phylacteries: Berachot 23a-b; Succah 41b
Concern for passing gas while wearing phylacteries: Berachot 23a
Phylacteries on Shabbat: Shabbat 132a
Wearing phylacteries in a cemetery: Berachot 18a
Whether a person must intend to fulfill the Mitzvah in order to get credit for wearing phylacteries: Eruvin 95b-96a
Whether one fulfills a Mitzvah when wearing only the Head or Arm Phylactery, without its partner: Menachot 38a
Whether one should wear one of the two phylacteries, if he doesn't have the other: Menachot 44a
Whether Phylacteries are considered to be a Time-Bound Mitzvah: Kiddushin 35a
Going to the bathroom and Washing hands before putting on Phylacteries: Berachot 14b-15a
Sleeping/Napping [and their definitions] while wearing Phylacteries: Berachot 23b; Succah 26a-b, 41b
Sexual relations while wearing Phylacteries: Succah 26b
Eating while wearing tefillin: Berachot 23b
Wearing Phylacteries after a seminal emission, before immersing in a Mikvah [ritual bath]: Succah 26b
What to do if one experiences seminal emission while wearing Phylacteries: Succah 26a-b
How far from a bathroom one must remove his phylacteries, and where he should store them: Berachot 23a-b
What happens if one is in the bathroom and realizes he is still wearing his phylacteries: Berachot 25a
Not to carry a burden on one's head, atop the Phylacteries: Eruvin 95b