Derasha on Bo 12:17 — Torah Temimah note 5
Parashas Bo · Shemos 12:17 · TT note 5
The Complete Passuk
וּשְׁמַרְתֶּם֮ אֶת־הַמַּצּוֹת֒ כִּ֗י בְּעֶ֙צֶם֙ הַיּ֣וֹם הַזֶּ֔ה הוֹצֵ֥אתִי אֶת־צִבְאוֹתֵיכֶ֖ם מֵאֶ֣רֶץ מִצְרָ֑יִם וּשְׁמַרְתֶּ֞ם אֶת־הַיּ֥וֹם הַזֶּ֛ה לְדֹרֹתֵיכֶ֖ם חֻקַּ֥ת עוֹלָֽם׃
Source Citation
Torah Temimah on Shemos 12:17, note 5 (on וּשְׁמַרְתֶּם אֶת הַמַּצּוֹת) points to guarding flour from harvest time.
Sefaria — Exodus 12:17
Sefaria — Torah Temimah on Exodus 12:17
Core Text of Chazal
Core Text — via Torah Temimah
מִבָּעֵי לֵיהּ לְאִינָשׁ לְנַטּוֹרֵי קִמְחָא דְּפִסְחָא מֵעִידַּן קְצִירָה, דַּאֲמַר קְרָא ״וּשְׁמַרְתֶּם אֶת הַמַּצּוֹת״.
English: A person should guard the flour of Pesach from the time of harvesting, as Scripture says “and you shall guard the matzos.”
Type of Learning
Early start of shimur — from harvest, not only from kneading.
What Is Learned
Ideal guarding of matzah flour begins at the harvest stage.