Mahabharata 12.193.16

प्राणापानौ तथोदानं समानं व्यानमेव चएवं तान्मनसि स्थाप्य दधतुः प्राणयोर्मनः

prāṇāpānau tathodānaṃ samānaṃ vyānameva caevaṃ tānmanasi sthāpya dadhatuḥ prāṇayormanaḥ

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