Canto 2 -
Ayodhyā-kāṇḍa
Chapter 64: Daśaratha Gives up his Life in Remembrance of Lord Rāma
Text 2.64.51

एवमुक्त्वा तु दिव्येन विमानेन वपुष्मता।
आरुरोह दिवं क्षिप्रं मुनिपुत्रो जितेन्द्रियः॥

evam uktvā tu divyena vimānena vapuṣmatā
āruroha divaṁ kṣipraṁ muni-putro jitendriyaḥ

evam = this; uktvā tu = having said; divyena = on a divine; vimānena = airplane; vapuṣmatā = of celebrated appearance; āruroha = ascended; divam = to the heavens; kṣipram = quickly; muni-putraḥ = son of sage; jita-indriyaḥ = the sense-controlled.

Having said this, the sense-controlled son of sage quickly ascended to the heavens on a divine airplane of celebrated appearance.