Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 18
Sanskrit:
हन्यमानान् स्वकान् दृष्ट्वा पुरुषानुचरैर्बलि: ।वारयामास संरब्धान् काव्यशापमनुस्मरन् ॥ १८ ॥
ITRANS:
hanyamānān svakān dṛṣṭvāpuruṣānucarair baliḥvārayām āsa saṁrabdhānkāvya-śāpam anusmaran
Translation:
When Bali Mahārāja saw that his own soldiers were being killed by the associates of Lord Viṣṇu, he remembered the curse of Śukrācārya and forbade his soldiers to continue fighting.