Valmiki Ramayana Sundara Kanda Sarga 33 Shloka 24
Original Shlokaस पितुर्वचनं श्रीमानभिषेकात्परं प्रियम्।।5.33.24।। मनसा पूर्वमासाद्य वाचा प्रतिगृहीतवान्।
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श्रीमान् illustrious one, सः he, पितुः father's, वचनम् word, अभिषेकात् more than coronation, परम् supreme, प्रियम् dear, मनसा by his mind, पूर्वम् first, आसाद्य having accepted, वाचा by word, प्रतिगृहीतवान् accepted
"The illustrious Rama who valued his father's word more than sovereignty, bowed to the command of the father.