Markandeyapurana 78.16

78.16

yattasya ṛṅmayaṃ tejo bhavitā tena medinī /
yajurmayenāpi divaṃ svargaḥ sāmamayaṃ raveḥ //

Mārkaṇḍeya spoke:
Being extolled thus by the gods and devarṣis, the imperishable globe of splendour shed his splendour then. That portion of the Sun’s splendour which was composed of the Ṛc became the earth, and of that portion composed of the Yajus was made the sky, and that portion composed of the Sāman became heaven.[4] Of the fifteen shreds of his splendour which were pared off by Tvaṣṭṛ, the high-souled Tvaṣṭṛ verily made Sarva’s[5] trident, the discus of Viṣṇu and the Yasus, the very terrible weapon of Śaṅkara, and Agni’s spear and Kuvera’s palki; and all the fierce weapons of the others who are the gods’ foes, and of the Yakṣas and Vidyādharas—those Viśvakṛt made. And therefore the adorable lord bears only a sixteenth part. His splendour was pared off by Viśvakarman into fifteen parts.