Skandapurana 1.2.25.19

1.2.25.19

18 atha praṇayakopakupitāyāḥ pārvatyāḥ śivasakāśato niṣkramya nijadehakālimanivṛttaye tapaḥkaraṇārthaṃ sakhībhiḥ saha gautamāśramaṃ pratyāgamanam, atha gautamopadeśena devyā tadāśramasamīpe tīvrataraniyamadhāraṇapūrvakamanudinamaruṇācaleśvaraparicaraṇarūpatapaḥkaraṇam 249

18. Now the arrival of Pārvatī, angered by lovers' quarrel, leaving Śiva's presence to go to the hermitage of Gautama along with her female companions in order to perform austerity for the removal of the dark complexion of her own body; then, by the instruction of Gautama, the Goddess's performance of austerity in the form of daily service to the Lord of Aruṇācala near that hermitage, while observing exceedingly severe vows... 249