Mahabharata 3.281.72

उत्तिष्ठोत्तिष्ठ भद्रं ते पितरौ पश्य सुव्रतविगाढा रजनी चेयं निवृत्तश्च दिवाकरः

uttiṣṭhottiṣṭha bhadraṃ te pitarau paśya suvratavigāḍhā rajanī ceyaṃ nivṛttaśca divākaraḥ

Our plain-language meaning of this verse is waiting for scholar review.