SB 5.26.4
rajovaca
naraka nama bhagavan kim desa-visesa athava bahis tri-lokya ahosvid antarala iti.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
King Pariksit inquired from Sukadeva Gosvami: My dear lord, are the hellish regions outside the universe, within the covering of the universe, or in different places on this planet?