Mahabharata 1.66.2

अथापश्यद्वरारोहा तपसा दग्धकिल्बिषम्विश्वामित्रं तपस्यन्तं मेनका भीरुराश्रमे

athāpaśyadvarārohā tapasā dagdhakilbiṣamviśvāmitraṃ tapasyantaṃ menakā bhīrurāśrame

Our plain-language meaning of this verse is waiting for scholar review.