Midrasz do Samuela I 9:11

Whence again dost thou learn this? Know that it is so. Come and see from Moses, for, although he had not yet entered the city, he found maidens coming out before him, as it is said, "Now the priest of Midian had seven daughters; and they came" (Ex. 2:16). And He prospered his way, and he redeemed Israel from Egypt. Whence dost thou know this? Know that it is so. Come and see from Saul, for whilst he had not yet entered the city, he found maidens coming forth before him, as it is said, "As they went up the ascent to the city, they found young maidens going out" (1 Sam. 9:11). And He prospered his way and he acquired the sovereignty. || And whence do we know this? Know thou that it is so. Come and learn from Jacob, for whilst he had not yet entered the city, he found maidens coming forth before him, as it is said, "And, behold, Rachel his daughter cometh" (Gen. 29:6).