Desirability of Supplications during the Journey

Imam Al-Nawawi’s Riyad-us-Saliheen
Chapter 172
Desirability of Supplications during the Journey

980. Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah (sallallaahu ’alayhi wa sallam) said, “Three supplications are answered without doubt. The supplication of the oppressed, the supplication of the traveller, and the supplication of the parent for his son.”
[At-Tirmidhi and Abu Dawud].