וַיִּצְבֹּ֨ר יוֹסֵ֥ף בָּ֛ר כְּח֥וֹל הַיָּ֖ם הַרְבֵּ֣ה מְאֹ֑ד עַ֛ד כִּי־חָדַ֥ל לִסְפֹּ֖ר כִּי־אֵ֥ין מִסְפָּֽר׃
I nagromadził Josef zboża, jako piasku morskiego, mnóstwo wielkie; tak że zaniechał liczyć, gdyż nie było liczby.
Midrash Tanchuma
What is written before this verse in Scripture? And all the countries came into Egypt to Joseph to buy corn (ibid. 41:57). They did so because he had devoted himself to accumulating corn, as is said: And Joseph laid up corn … during the seven years of plenty. And the seven years of famine began to come, according as Joseph had said (Gen. 41:49–53).