“What did you do with your original Retzuos and Tallis after you replaced them?”
Megillah 26b seems to classify tzitzis as “tashmishei mitzvah” (“objects used for a mitzvah”) that may be thrown in the garbage, and retzuos as “tashmishei k’dushah” (“objects which are accessory to sacred items”) that require “hiding in a safe place.”
Is that correct?