Markandeyapurana 46.7

46.7

utpattirbrahmaṇo yāvadāyuṣo dviparārdhikam /
tāvaddinaṃ pareśasya tatsamā saṃyame niśā //

The day of the Supreme Lord[4] lasts from the birth of Brahmā, as long as the two half paras which compose his life;[5] and his night during the dissolution is of the same duration.[6] Now at the dawn of day he awakes, he who is the origin of the universe, who is without beginning, who is the cause of all things, whose soul transcends thought; every one else works in an inferior way.