Vaishnava Dharmashastra 22.88

22.88

jñānaṃ tapo 'gnir āhāro mṛnmano vāryupāñjanam
vāyuḥ karmārkakālau ca śuddhikartṝṇi dehinām //

Sacred knowledge (see 92), religious austerities (see go), fire (see XXIII, 33), holy food (Pañkagavya), earth (see 91), the mind, water (see 91), smearing (with cow-dung and the like, see XXIII, 56), air (see XXIII, 40, (the morning and evening prayers and other) religious acts, the sun (see XXIII, 40), and time (by the lapse of the ten days of impurity and the like) are purifiers of animate objects.