בראשית לב:ל קבלה: זוהר

Once day broke and night departed, Jacob was strengthened, and the power of Samael diminished. Then he said, "Let me go" (Ibid. 27), for it was his time to say the morning hymns and he had to leave. He confirmed his blessings and added a blessing of his own, as it is written, "And he blessed him there" (Ibid. 30).