Valmiki Ramayana Ayodhya Kanda Sarga 24 Shloka 35
Original Shlokaकृतान्तस्य गतिः पुत्र दुर्विभाव्या सदा भुवि। यस्त्वां सञ्चोदयति मे वच आच्छिद्य राघव।।2.24.35।।
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पुत्र O son, राघव O Rama, यः whichever (destiny), मे my, वचः words, आच्छिद्य cutting asunder (disregarding), त्वा you, सञ्चोदयति is prompting, कृतान्तस्य destiny's, गतिः course, सदा always, भुवि in this world, दुर्विभाव्या is inconceivable.
O Rama inconceivable is the course of destiny which is inciting you to go to the forest disregarding my words.