Study Pesachim folio 50B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
The rabbis stated a principle: And a person may not deviate from the local custom, due to potential dispute. Similarly, one who transports Sabbatical Year produce from a place where a crop has ceased in the fields to a place where it has not yet ceased or from a place where it has not yet ceased to
Talmud: The Talmud asks: Why discuss this prohibition particularly with regard to Passover eves? It is prohibited to perform labor even on Shabbat eves and Festival eves as well, as it was taught in a baraita: One who performs labor on Shabbat eves and Festival eves from minḥa time onward never see
The Talmud cites the source of the matter itself in its entirety: One who performs labor on Shabbat eves or on Festival eves from minḥa time onward, and similarly one who works immediately upon the conclusion of Shabbat, or the conclusion of a Festival, or the conclusion of Yom Kippur, or on any
Apropos reward or lack thereof, the Talmud cites the Tosefta in which A baraita states: There is one who is diligent and rewarded for his diligence; and there is one who is diligent and penalized due to his diligence; there is one who is lazy and rewarded; and there is one who is lazy and penalized.
On the topic of reward for a mitzva fulfilled without intent, Rava raised a contradiction: It is written: “For Your mercy is great unto the heavens, and Your truth reaches the skies” (Psalms 57:11); and it is written elsewhere: “For Your mercy is great above the heavens, and Your truth reaches th