حَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا مَرْوَانُ بْنُ مُعَاوِيَةَ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ ذَكْوَانَ، بْنِ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ لَوْلاَ أَنَّ رِجَالاً مِنْ أُمَّتِي ‏"‏ ‏.‏ وَسَاقَ الْحَدِيثَ وَقَالَ فِيهِ ‏"‏ وَلَرَوْحَةٌ فِي سَبِيلِ اللَّهِ أَوْ غَدْوَةٌ خَيْرٌ مِنَ الدُّنْيَا وَمَا فِيهَا ‏"‏ ‏.‏

It has been narrated on the authority of Abu Huraira that the Messenger of Allah (PBUH) said: If some persons of my Umma (were not to undertake the hardships of Jihad), and he (Abu Huraira) then narrated the rest of the hadith and then said: A journey undertaken for jihad in the evening or morning merits a reward better than the world and all that is in it. Translation Not Available

Book Ref: Sahih Muslim Book 33 Hadith 4642
Web Ref:  Sahih Muslim Book 20 Hadith 1882