Narrated Sahl bin Sa`d As-Sa'di:Allah's Messenger (ﷺ) said, "To guard Muslims from infidels in Allah's Cause for one day is better than the world and whatever is on its surface, and a place in Paradise as small as that occupied by the whip of one of you is better than the world and whatever is on its surface; and a morning's or an evening's journey which a slave (person) travels in Allah's Cause is better than the world and whatever is on its surface."
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُنِيرٍ، سَمِعَ أَبَا النَّضْرِ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ عَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنْ أَبِي حَازِمٍ، عَنْ سَهْلِ بْنِ سَعْدٍ السَّاعِدِيِّ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " رِبَاطُ يَوْمٍ فِي سَبِيلِ اللَّهِ خَيْرٌ مِنَ الدُّنْيَا وَمَا عَلَيْهَا، وَمَوْضِعُ سَوْطِ أَحَدِكُمْ مِنَ الْجَنَّةِ خَيْرٌ مِنَ الدُّنْيَا وَمَا عَلَيْهَا، وَالرَّوْحَةُ يَرُوحُهَا الْعَبْدُ فِي سَبِيلِ اللَّهِ أَوِ الْغَدْوَةُ خَيْرٌ مِنَ الدُّنْيَا وَمَا عَلَيْهَا ".
Bukhari
Fighting for the Cause of Allah (Jihaad) • Hadith 107