Valmiki Ramayana Ayodhya Kanda Sarga 73 Shloka 24
Original Shlokaतवापि सुमहाभागा जनेन्द्राः कुलपूर्वगाः। बुद्धेर्मोहः कथमयं सम्भूतस्त्वयि गर्हितः।।2.73.24।।
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तव your, कुलपूर्वगाः ancestors of your family, जनेन्द्राः अपि kings also, सुमहाभागाः were highly distinguished, गर्हितः censured, अयम् this, बुद्धेः mind's, मोहः delusion, त्वयि in you, कथम् how, सम्भूतः originated.
Even the kings in your ancestral family were highly distinguished men. How did this condemnable deflection originate in your mind?