Musnad Ahmad 2303

It was narrated that Ibn 'Abbas (رضي الله عنه) said: When the Messenger of Allah (ﷺ) wanted to set out on a journey, he would say: "O Allah, You are the Companion on the journey and the Successor (the One Who guards them in a person's absence) over the family. O Allah, I seek refuge with You from burdensome travelling companions and an ill-fated outcome upon returning. O Allah, make the distance short for us and make the journey easy for us.” And when he wanted to return, he said: "Returning, repenting, worshipping and praising our Lord."..