The Messenger of Allah ﷺ observed the noon and afternoon prayers together, and the sunset and Isha' prayers together without being in a state of fear or in a state of journey.  

صَلَّى رَسُولُ اللَّهِ ﷺ الظُّهْرَ وَالْعَصْرَ جَمِيعًا وَالْمَغْرِبَ وَالْعِشَاءَ جَمِيعًا فِي غَيْرِ خَوْفٍ وَلاَ سَفَرٍ  

"The Messenger of Allah ﷺ prayed Zuhr and 'Asr together, and Maghrib and 'Isha' together, when there was no fear and he was not traveling."  

صَلَّى رَسُولُ اللَّهِ ﷺ الظُّهْرَ وَالْعَصْرَ جَمِيعًا وَالْمَغْرِبَ وَالْعِشَاءَ جَمِيعًا مِنْ غَيْرِ خَوْفٍ وَلاَ سَفَرٍ  

"The Messenger of Allah ﷺ prayed Zuhr and 'Asr together, and Maghrib and 'Isha' together, when there was no fear and he was not traveling." (Using translation from Nasāʾī 601)  

«صَلَّى رَسُولُ اللَّهِ ﷺ الظُّهْرَ وَالْعَصْرَ جَمِيعًا وَالْمَغْرِبَ وَالْعِشَاءَ جَمِيعًا فِي غَيْرِ خَوْفٍ وَلَا سَفَرٍ»  

[Machine] The Prophet ﷺ combined dhuhr (midday prayer) with asr (afternoon prayer), and maghrib (evening prayer) with isha (night prayer) during travel.  

«أَنَّ النَّبِيَّ ﷺ جَمَعَ بَيْنَ الظُّهْرِ وَالْعَصْرِ وَالْمَغْرِبِ وَالْعِشَاءِ فِي السَّفَرِ»  

[Machine] That the Prophet ﷺ combined the Dhuhr and Asr prayers in Madinah without fear or travel.  

أَنَّ النَّبِيَّ ﷺ جَمَعَ بَيْنَ الظُّهْرِ وَالْعَصْرِ بِالْمَدِينَةِ فِي غَيْرِ خَوْفٍ وَلَا سَفَرٍ