Ramayana
एवं स रावणः प्राप्तः कार्तवीर्यात्प्रधर्षणम् । पुलस्त्यवचनाच्चापि पुनर्मुक्तो महाबलः ॥ 7-33-21 ॥
Thus did Ravana suffer humiliation at the hands of Kartavirya, and again, through the word of Pulastya, that mighty one was set free.
english translation