For the source text click/tap here: Bava Metzia 48
To download, click/tap here: PDF
Rabbi Shimon says: Even though the Sages said that when one party takes possession of a garment, the other party acquires a gold dinar, but when one party takes possession of a gold dinar, the other party does not acquire a garment, in any case, that is what the halakha would be.
But the Sages said with regard to one who reneges on a transaction where one party pulled the gold dinar into his possession: He Who exacted payment from the people of the generation of the flood, and from the people of the generation of the dispersion, and from the inhabitants of Sodom and Gomorrah, and from the Egyptians in the Red Sea, will in the future exact payment from whoever does not stand by his statement.
We explore this strange expression: מִי שֶׁפָּרַע מֵאַנְשֵׁי דּוֹר הַמַּבּוּל וּמֵאַנְשֵׁי דּוֹר הַפְּלַגָּה וּמֵאַנְשֵׁי סְדוֹם וַעֲמוֹרָה וּמִמִּצְרַיִם בַּיָּם
As a kind of curse for reneging on financial commitments…