Bhagavadgita 4.30

4.30

vāyuṃ juhvati recakakāle apānaṃ prāṇena ekīkurvaṃti | tathā prāṇāpānagatīḥ prāṇaśca apānaśca prāṇāpānau prāṇāpānayoḥ gatayaḥ ūrdhvā'dhogatayaḥ prāṇāpānagatayaḥ tāḥ ruddhvā kuṃbhakākhyaṃ prāṇāyāmaṃ kṛtvā recakakāle apānavāyuṃ prāṇavāyau juhvati ekīkurvaṃti| ayaṃ prāṇāyāmaṃyajñaḥ |
yajñaśiṣṭeti | yajñaśiṣṭāmṛtabhujaḥ yajñān kṛtvā paścāt śiṣṭaṃ yajñaśiṣṭaṃ yajñaśiṣṭameva amṛtaṃ amṛtarūpaṃ annaṃ yajñaśiṣṭāmṛtaṃ yajñaśiṣṭāmṛtaṃ bhuṃjaṃti te sanātanaṃ nityaṃ brahma yāṃti jñānadvāreṇa prāpnuvaṃti | ayaṃ alpasukhaḥ lokaḥ manuṣyalokaḥ ayajñasya nāsti yajño yasya saḥ ayajñaḥ tasya yajñānuṣṭhānaśūnya̍sya nāsti | he kurusattama ! anyaḥ paralokaḥ kutaḥ| ataḥ hetoḥ yajñāḥ sarvathā karttavyāḥ |