Hadith: When the Messenger of Allah (may Allah's peace and blessings be upon him) traveled, he would seek refuge from the hardships of the journey, from having a change of heart, adverse conditions replacing good ones, the prayer of an oppressed person, and from seeing a misfortune occurring to his family and wealth

عن عبد الله بن سَرْجِس رضي الله عنه قال: كان رسول الله صلى الله عليه وسلم إذا سافر يَتَعَوَّذ مِن وَعْثاء السَّفَر، وكآبة الـمُنْقَلَب، والحَوْر بعد الكَوْن، ودعوة المظلوم، وسُوء الـمَنْظَر في الأهل والمال.
[صحيح] - [رواه مسلم]

‘Abdullāh ibn Sarjis (may Allah be pleased with him) reported: When the Messenger of Allah (may Allah's peace and blessings be upon him) traveled, he would seek refuge [in Allah] from the hardships of the journey, from having a change of heart, adverse conditions replacing good ones, the prayer of an oppressed person, and from seeing a misfortune occurring to his family and wealth.
[Authentic hadith] - [Narrated by Muslim]

Explanation

The Prophet (may Allah's peace and blessings be upon him) used to seek refuge in Allah from the hardships of travel or that he would return from a journey sad due to a calamity that had befallen his family or wealth. He would likewise seek refuge in Allah from adverse conditions and would pray that Allah would save him from the supplications of the oppressed.