Mbh 3.148.1b

And, O child, in the Krita age, there were neither gods, nor demons, nor Gandharvas, nor Yakshas, nor Rakshasas, nor Nagas. And there was no buying and selling. And the Sama, the Rich, and the Yajus did not exist. And there was no manual labour. And then the necessaries of life were obtained only by being thought of. And the only merit was in renouncing the world. And during that yuga, there was neither disease, nor decay of the senses. And there was neither malice, nor pride, nor hypocrisy, nor discord, nor ill-will, nor cunning, nor fear, nor misery, nor envy, nor covetousness. And for this, that prime refuge of Yogis, even the Supreme Brahma, was attainable to all. And Narayana wearing a white hue was the soul of all creatures. And in the Krita Yuga, the distinctive characteristics of Brahmanas, Kshatriyas, Vaisyas, and Sudras were natural and these ever stuck to their respective duties. And then Brahma was the sole refuge, and their manners and customs were naturally adapted to the attainment of Brahma and the objects of their knowledge was the sole Brahma, and all their acts also had reference to Brahma. In this way all the orders attained merit. And one uniform Soul was the object of their meditation; and there was only one mantra (the Om), and there was one ordinance. And although of different characteristics, all of them followed a single Veda; and they had one religion. And according to the divisions of time, they led the four modes of life, without aiming at any object, and so they attained emancipation. The religion consisting in the identification of self with Brahma indicates the Krita Yuga. And in the Krita Yuga, the virtue of the four orders is throughout entire in four-fold measure. Such is the Krita Yuga devoid of the three qualities. Do thou also hear from me of the character of the Treta Yuga. In this age, sacrifices are introduced, and virtue decreaseth by a quarter. And Narayana (who is the Soul of all creatures) assumeth a red colour.