Narrated Anas bin Malik: Whenever the Prophet ﷺ started a journey before noon, he used to delay the Zuhr prayer till the time of 'Asr and then offer them together; and if the sun declined (at noon) he used to offer the Zuhr prayer and then ride (for the journey).
The Prophet ﷺ also taught us to be mindful of how much energy we expend during travel so as not to tire ourselves out too quickly or become ill from overexertion. By delaying his prayers until later in the day while travelling, this allowed him to conserve some energy for completing other tasks during his travels such as preaching or teaching others about Islam. This is an important lesson for us today as well; even when travelling or engaging in any activity, it is important to take care of ourselves first so that we can continue doing good deeds without becoming exhausted or ill from overexertion.