Maitrāyaṇīya Āraṇyaka 2.5.p6

2.5.p6

vyāna̱'itya̱thāya̱m̐ yordhvamu̱tkrāma̍tye̱ṣa vāva sa prāṇo̍'tha̱ yo'ya̍ma̱vāṅ

and vyāna. Now, this one which rises upward, this is indeed the prāṇa. Now, that which goes downward,