Valmiki Ramayana Aranya Kanda Sarga 75 Shloka 27
Original Shlokaसुग्रीवमभिगच्छ त्वं वानरेन्द्रं नरर्षभ। इत्युवाच पुनर्वाक्यं लक्ष्मणं सत्यविक्रमम्।।3.75.27।।
1 source checked for this shloka
नरर्षभ best among men, त्वम् you, वानरेन्द्रम् to the lord of monkeys, सुग्रीवम् to Sugriva, अभिगच्छ approach, पुनः again, लक्ष्मणम् to Lakshmana, इति this, उवाच said.
Rama said to Lakshmana, the best of men, who had truth as his strength, Go to Sugriva, lord of the monkeys.