Mbh 12.238.1c

[945] Through (universal) iniquity the Vedas disappear and with them all the duties inculcated in them as also the duties in respect of the four modes of life. They who remain observant of the duties of their own order become afflicted, and all mobile and immobile objects undergo a change for the worse.[946] As the showers of heaven cause all products of the earth to grow, after the same manner the Vedas, in every age, cause all the angas to grow.[947] Without doubt, Time assumes diverse shapes. It has neither beginning nor end. It is Time which produces all creatures and again devours them. I have already spoken of it to thee. Time is the origin of all creatures; Time is that which makes them grow; Time is that which is their destroyer; and lastly it is time that is their ruler. Subject to pairs of opposites (such as heat and cold, pleasure and pain, etc.), creatures of infinite variety rest on Time according to their own natures (without being otherwise than how they have been ordained by supreme Brahma).'"'"[948]