Shiva Purana
मार्कण्डेय उवाच ॥ ते धर्मयोगनिरतास्सप्त मानसचारिणः ॥ वाय्वंबुभक्षास्सततं शरीरमुपशोषयन् ॥ २ ॥
Mārkaṇḍeya said:— Those seven traversers of the lake Mānasa engaged in sacred rites and Yoga got their bodies withered up taking in only air and water.
english translation
mArkaNDeya uvAca ॥ te dharmayoganiratAssapta mAnasacAriNaH ॥ vAyvaMbubhakSAssatataM zarIramupazoSayan ॥ 2 ॥
hk transliteration by Sanscript