The Law Code of Devala 87

87

piṇyākaśākatakrāmbusaktūnāṃ prativāsaram
ekarātropavāsaśca kṛcchraḥ saumyaḥ prakīrtitaḥ

Subsisting on oilcake, vegetables, buttermilk, water, and barley-meal on successive days / and fasting for one night is proclaimed as the mild penance (Saumyakṛcchra).