Valmiki Ramayana Bala Kanda Sarga 54 Shloka 12
Original Shlokaएवमुक्ता वसिष्ठेन प्रत्युवाच विनीतवत्। वचनं वचनज्ञा सा ब्रह्मर्षिममितप्रभम्।।1.54.12।।
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वसिष्ठेन by Vasishta, एवम् in this way, उक्ता spoken, वचनज्ञा knowledgeable in words, सा that cow, अमितप्रभम् immeasurable power, ब्रह्मर्षिम् addressing brahmarshi, वचनम् words, विनीतवत् with humility, प्रत्युवाच replied.
To these words of brahmarshi Vasishta armed with immeasurable power, Sabala, who knew the use of words, replied with humility: