Kautilya's Arthashastra 13.2.47

13.2.47

pramādaṃ yāti yasmin vā viśvāsāt svajanotsave //
yatrāsyārakṣisaṃcāro durdine saṃkuleṣu vā /

Whatever may be the festivities of his own men, which the king goes to attend, wherever he is unguarded or during a cloudy day, or in the tumultuous concourse of people;