MISHNA: One who stores a seed for sowing, or as a sample, or for medicinal purposes and carried it out on Shabbat is liable for carrying out any amount. By storing that measure, he indicates that it is significant to him. Therefore, he is liable for carrying it, despite the fact that what he carried out is less than the halakhic measure that determines liability for that item. And any other person is only liable for carrying it out on Shabbat if he carries out its measure for liability. If one stored the seed, carried it out, and then brought it back in, with no intention to utilize it for the specific purpose for which he stored it, he is only liable if he brought in its measure for liability (Rav Shmuel Strashun). מַתְנִי׳ הַמַּצְנִיעַ לְזֶרַע וּלְדוּגְמָא וְלִרְפוּאָה וְהוֹצִיאוֹ בְּשַׁבָּת — חַיָּיב בְּכׇל שֶׁהוּא. וְכׇל אָדָם — אֵין חַיָּיב עָלָיו אֶלָּא כְּשִׁיעוּרוֹ. חָזַר וְהִכְנִיסוֹ — אֵינוֹ חַיָּיב אֶלָּא כְּשִׁיעוּרוֹ.
GEMARA: The Gemara asks: Why does the mishna teach: One who stores a seed for a specific purpose and carried it out? Let the mishna simply teach: One who carries out a seed for planting, or as a sample, or for medicinal purposes is liable for carrying out any amount. One is not liable for storing the seed. He is liable for carrying out less than the measure that determines liability because he attributed significance to that measure. Abaye said: With what we are dealing here? We are dealing with a case where one stored it for a specific purpose and forgot why he stored it, and now he carries it out for no specific purpose. גְּמָ׳ לְמָה לֵיהּ לְמִיתְנֵי ״הַמַּצְנִיעַ״? לִיתְנֵי: הַמּוֹצִיא לְזֶרַע וּלְדוּגְמָא וְלִרְפוּאָה — חַיָּיב בְּכׇל שֶׁהוּא! אָמַר אַבָּיֵי: הָכָא בְּמַאי עָסְקִינַן, כְּגוֹן שֶׁהִצְנִיעוֹ וְשָׁכַח לָמָּה הִצְנִיעוֹ, וְהַשְׁתָּא קָא מַפֵּיק לֵיהּ סְתָמָא.