Mahabharata 3.203.26

पक्वाशयस्त्वधो नाभ्या ऊर्ध्वमामाशयः स्थितःनाभिमध्ये शरीरस्य प्राणाः सर्वे प्रतिष्ठिताः

pakvāśayastvadho nābhyā ūrdhvamāmāśayaḥ sthitaḥnābhimadhye śarīrasya prāṇāḥ sarve pratiṣṭhitāḥ

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