Valmiki Ramayana Yuddha Kanda Sarga 130 Shloka 45

सुग्रीव Sugriva, त्वम् you, अस्माकम् our, चतुर्णाम् fourth, पञ्चमः fifth, भ्राता brother, सौहार्दात् affectionately, मित्रम् friend, जायते born, अपकारः maleficence, अरिलक्षणम् sign of an enemy

"Sugriva, you are the fifth brother to four of us and should have been born like that" said Bharata. One who helps becomes friend and maleficence is a sign of an enemy.