Valmiki Ramayana Bala Kanda Sarga 59 Shloka 1

उक्तवाक्यम् having the words spoken, साक्षात् evident to the senses, चण्डालरूपिणम् chandala form, राजानम् king, कृपया out of pity, कुशिकात्मज: Visvamitra, मधुरम् sweet, वाक्यम् words, अब्रवीत् spoken.

What the king said was proved by his chandala form which the son of Kushika (Viswamitra) heard and out of compassion spoke these sweet words: Viswamitra invites the sages to perform the sacrifice curses the sons of Vasishta and Mahodaya.