Bhagavatapurana 12.3.18

12.3.18

/0 śrī-śuka uvāca
kṛte pravartate dharmaś catuṣ-pāt taj-janair dhṛtaḥ /
satyaṃ dayā tapo dānam iti pādā vibhor nṛpa //

18. Sri Suka said:— In the Kritayuga (golden age) Dharma proceeds on all its four feet as supported by the people of the time and, O king, the four feet of the powerful and perfect Dharma are truthfulness, mercifulness, tapas, (self-discipline and contemplation) and charitable gifts.