Bhagavad Gita 16.20
So, reborn, they spend life after life enveloped in delusion, and they never reach Me, O Prince, but degenerate into even lower forms of life.
असुरीं योनिमापन्ना मूढा जन्मनि जन्मनि।मामप्राप्यैव कौन्तेय ततो यान्त्यधमां गतिम्॥asurīṃ yonimāpannā mūḍhā janmani janmani|māmaprāpyaiva kaunteya tato yāntyadhamāṃ gatim||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).