Valmiki Ramayana Sundara Kanda Sarga 46 Shloka 25

सः हरिः that vanara, दूरं far off, सहसा at once, उत्पत्य leaped, महावेगः in high speed, गिरौ on the mountain, विद्युद्राशिरिव like flashes of lightning, दुर्धरस्य Durdhara's, रथे on the chariot, निपपात fell on.

Hanuman suddenly leaped far off into the air at high speed and fell on Durdhara's chariot just like a thunderous lightning falls on a mountain.