Valmiki Ramayana Kishkindha Kanda Sarga 10 Shloka 25
Original Shlokaअत्रानेनास्मि संरुद्धो राज्यं प्रार्थयताऽत्मनः। सुग्रीवेण नृशंसेन विस्मृत्य भ्रातृसौहृदम्।।4.10.25।।
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आत्मनः my own, राज्यम् kingdom, प्रार्थयता by desiring, सुग्रीवेण by Sugriva, नृशंसेन by the wicked one, अनेन by him, भ्रातृसौहृदम् brotherly love, विस्मृत्य forgetting, अहम् I, तत्र there, अस्मि I am, संरुध्दः I was obstructed
'I was obstructed by wicked Sugriva who forgot his brotherly love and was desiring the kingdom, which belongs to me.'