Valmiki Ramayana Kishkindha Kanda Sarga 8 Shloka 39
Original Shlokaतद्विनाशाद्धि मे दुःखं प्रणष्टं स्यादनन्तरम्। सुखं मे जीवितं चैव तद्विनाशनिबन्धनम्4.8.39।।
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तद्विनाशाद्धि only after he is killed, अनन्तरम् thereafter, मे my, दुःखम् sorrow, प्रणष्टम् can vanish, स्यात् will be, मे my, सुखम् happiness, जीवितं चैव and life also, तद्विनाशनिबन्धनम् is subject to his destruction.
'My sorrow will go only with his death. My happiness and my life are also subject to his destruction.