And it was the time of the morning and he saw her, and behold, she was Leah, whom all the night he had thought to be Rahel; because Rahel had delivered to her all the things with which Jakob had presented her. But when he saw this, he said to Laban, what is this that thou hast done to me? Was it not for Rahel that I served with thee? Why hast thou deceived me?
Rachel Gave Her Signs to Leah to Spare Her Sister's Shame
Targum Pseudo-Jonathan on Genesis 29:25