ENOfficial
Ibn ‘Abbas said that God’s Messenger used to combine the noon and the afternoon prayer while travelling, and also to combine the sunset and the evening prayer. Bukhari transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنِ ابْنِ عَبَّاسٍ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَجْمَعُ بَين الظُّهْرِ وَالْعَصْر إِذَا كَانَ عَلَى ظَهْرِ سَيْرٍ وَيجمع بَين الْمغرب وَالْعشَاء. رَوَاهُ البُخَارِيّ
sunnah.com