Śatapatha Brāhmaṇa ("of a hundred paths") 1.4.3.20

1.4.3.20

yadi daśamyāmanu ... yādavāñcaṃ vā etatprāṇamātmano 'gnāvādhā avācā prāṇenātmana ārttimāriṣyasyapinaddho mariṣyasīti tathā haiva syāt

If any one were to curse him at the tenth (verse), he should say to him, 'Thereby thou hast put thine own down-breathing into the fire: by that down-breathing of thine shalt thou undergo suffering, thou shalt die from constipation!' for this is what would take place.