SB 8.19.35
nistham te narake manye
hy apradatuh pratisrutam
pratisrutasya yo ’nisah
pratipadayitum bhavan
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
You will certainly be unable to fulfill your promise, and I think that because of this inability your eternal residence will be in hell.