After pleasing Bali Mahārāja with mild words, Lord Indra, the King of the demigods, who was most intelligent, very politely submitted all the proposals he had learned from the Supreme Personality of Godhead, Lord Viṣṇu.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
महेन्द्रः श्लक्ष्णया वाचा सान्त्वयित्वा महामतिः । अभ्यभाषत तत्सर्वं शिक्षितं पुरुषोत्तमात्
mahendraḥ ślakṣṇayā vācā sāntvayitvā mahāmatiḥ | abhyabhāṣata tatsarvaṃ śikṣitaṃ puruṣottamāt
SB 8.6.30