English of Core Text: Rava expounded: in the merit of Avraham our father’s saying “from a thread to a sandal-strap,” his children merited two mitzvot — the blue thread [of tzitzit] and the strap of tefillin.
On the daf / in context: Refusal of even the smallest gain from Sodom is repaid measure-for-measure with the “thread” and “strap” commandments.
Type of Learning
Custom
What Is Learned
Scrupulous refusal of improper gain becomes the merit for later mitzvot of thread and strap.