Mahabharata 9.49.20

न व्याहरति चैवैनं जैगीषव्यः कथंचनकाष्ठभूतोऽऽश्रमपदे वसति स्म महातपाः

na vyāharati caivainaṃ jaigīṣavyaḥ kathaṃcanakāṣṭhabhūto''śramapade vasati sma mahātapāḥ

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