The Messenger of Allah ﷺ combined in the expedition to Tabuk the noon prayer with the afternoon prayer and the sunset prayer with the 'Isha' prayer. He (one of the narrators) said: What prompted him to do that? He (Mu'adh) replied that he (the Holy Prophet) wanted that his Ummah should not be put to (unnecessary) hardship.
جَمَعَ رَسُولُ اللَّهِ ﷺ فِي غَزْوَةِ تَبُوكَ بَيْنَ الظُّهْرِ وَالْعَصْرِ وَبَيْنَ الْمَغْرِبِ وَالْعِشَاءِ قَالَ فَقُلْتُ مَا حَمَلَهُ عَلَى ذَلِكَ قَالَ فَقَالَ أَرَادَ أَنْ لاَ يُحْرِجَ أُمَّتَهُ