Agniveshyagrihyasutra 3.6.4.6

3.6.4.6

taṃ yadi jvālordhvamabhyujjvaled devalokamabhyajaiṣīdityenaṃ jānīyād atha yadi muhūrtamudetya vā bhramedantarikṣamabhyajaiṣīdityenaṃ jānīyād atha yadīmāmanuvinamedihaivetyenaṃ jānīyāt \

If the flame should blaze upward from it, one should know of him: “He has won the world of the gods.” Now, if having risen for a moment it should swirl, one should know of him: “He has won the intermediate space.” Now, if it should bend down toward this [earth], one should know of him: “He remains right here.”