Valmiki Ramayana Ayodhya Kanda Sarga 14 Shloka 61
Original Shlokaयदा वक्तुं स्वयं दैन्यान्न शशाक महीपतिः।।2.14.61।। तदा सुमन्त्रं मन्त्रज्ञा कैकेयी प्रत्युवाच ह।
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महीपतिः lord of the earth (the king), दैन्यात् due to the wretched conditon, स्वयम् personally, वक्तुम् to speak out, यदा when, न शशाक was not able, तदा then, मन्त्रज्ञा कैकेयी Kaikeyi, सुमन्त्रम् to Sumantra, प्रत्युवाच ह said in reply.
When the king himself in that wretched state was not able to speak to Sumantra, crafty Kaikeyi said to him in reply: