Valmiki Ramayana Bala Kanda Sarga 62 Shloka 24

राजा king, सदस्यानुमते with the consent of officiating priests, तम् that Sunassepha, पवित्रकृतलक्षणम् forming sacred knots of Kusa grass, रक्ताम्बरम् with red apparel, पशुम् as sacrificial animal, कृत्वा having made, यूपे to the sacrificial post, समबन्धयत् tied.

With the consent of the officiating priests the king invested Sunasepha with the sacred symbols with Kusa grass, dressed him in red apparel and tied him to the sacrificial post as a sacrificial animal.