Reference for Numbers 13:25

וַיָּשֻׁ֖בוּ מִתּ֣וּר הָאָ֑רֶץ מִקֵּ֖ץ אַרְבָּעִ֥ים יֽוֹם׃

And they returned from spying out the land at the end of forty days.

BDB