Valmiki Ramayana Yuddha Kanda Sarga 58 Shloka 56

गतासुः life gone, गतश्रीकः splendour gone, गतसत्त्वः strength gone, गतेन्द्रियः senses gone, सः he, छिन्नमूलः tree at the bottom, द्रुमःइव like tree, सहसा instantly, भूमौ on ground, पपात fell.

Life, splendour, strength, and senses departed Prahastha fell instantly on the ground like a tree cut at the bottom.