Ramayana
पुलस्त्याज्ञां प्रगृह्योचे न किञ्चन वचो ऽर्जुनः । मुमोच वै पार्थिवेन्द्रो राक्षसेन्द्रं प्रहृष्टवत् ॥ 7-33-17 ॥
Accepting Pulastya's command, Arjuna spoke not a single word; and the lord of kings released the lord of the Rakshasas, as one greatly delighted.
english translation