Agni Purana 171.3

171.3

muṇḍanaṃ sarvakṛcchreṣu snānaṃ homo hareryajiḥ /
utthitastu divā tiṣṭhedupaviṣṭas tathā niśi //

Tonsure, bathing, fire oblation, and sacrifice to Hari [are prescribed] in all kṛcchras. / One should stand upright during the day and sit at night;