Valmiki Ramayana Ayodhya Kanda Sarga 64 Shloka 21
Original Shlokaस तच्च्रुत्वा वचः क्रूरं मयोक्तमघशंसिना। नाशकत्तीव्रमायासमकर्तुं भगवानृषिः।।2.64.21।।
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भगवान् venerable, सः ऋषिः that sage, अघशंसिना conveying my sinful act, मया by me, उक्तम् uttered, क्रूरम् cruel, तत् those, वचः words, श्रुत्वा having heard, तीव्रम् intense, आयासम् anguish, अकर्तुम् not to do, नाशकत् was not able.
The venerable sage heard my cruel words about the sinful act and was not able to seriously react. (He was stunned).