Mahabharata 12.175.19
नभश्चोर्ध्वं शिरस्तस्य क्षितिः पादौ दिशो भुजौदुर्विज्ञेयो ह्यनन्तत्वात्सिद्धैरपि न संशयः
nabhaścordhvaṃ śirastasya kṣitiḥ pādau diśo bhujaudurvijñeyo hyanantatvātsiddhairapi na saṃśayaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book