Valmiki Ramayana Bala Kanda Sarga 72 Shloka 16
Original Shlokaयथा दशरथस्येयं तथाऽयोध्या पुरी मम। प्रभुत्वे नास्ति सन्देहो यथार्हं कर्तुमर्हथ।।1.72.16।।
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इयम् this Mithila, दशरथस्य Dasaratha's, यथा as, अयोध्या पुरी Ayodhya city, मम to me, तथा so it is, प्रभुत्वे in the matter of governance, सन्देह: doubt, नास्ति not there, यथार्हम् appropriately, कर्तुम् to do, अर्हथ behoves of you.
"Dasaratha has right on the city of Ayodhya as much as I have on this. This right is unquestionable. So do whatever you think right".