Bhagavad Gita Chapter 16 Verse 20

Gita 16.20

आसुरीम्, योनिम्, आपन्नाः, मूढाः, जन्मनि, जन्मनि,
माम् अप्राप्य, एव, कौन्तेय, ततः, यान्ति, अधमाम्, गतिम्।।20।।

Gita 16.20

Aasureem, yonim’, aapannaH, moodaH, janmni, janmni,
Mam’, apraapya, ev, kauntey, tatH, yaanti, adhmaam’, gatim’ ||20||

Translation: (Kauntey) Oh Arjun! (moodaH) those fools (mam’) me (apraapya) not attaining (ev) only (janmni) birth (janmni) to birth (aasureem’) demoniac (yonim’) wombs (aapannaH) attain (tatH) than that (adhmaam’) very low (gatim’) state (yaanti) attain i.e. fall into deep hells. (20)

Translation: Oh Arjun! Those fools, instead of attaining me, attain the demoniac wombs from birth to birth, and then attain a further lower state than that i.e. fall into deep hells.

Important: The description of aforesaid mantras 6 to 20 is also in Gita Gita Chapter 7 Verse 12 to 15 and 20 to 23, and in Gita Chapter 9 Verse Verse 21 to 25.