Rashi on Exodus 16:6/רש"י על שמות ט״ז:ו׳

1ערב is the same as לערב AT EVENING

2וידעתם כי ה׳ הוציא אתכם מארץ מצרים YE SHALL KNOW THAT THE LORD HATH BROUGHT YOU OUT OF THE LAND OF EGYPT — Since you said to us, (v. 3) “for ye have brought us forth” you shall know that it was not we who brought you forth, but it was God who brought you forth for He will bring quails for you.