'Abdullah bin 'Amr bin Al-'As (May Allah be pleased with them) reported:
The Messenger of Allah ﷺ said, "A detachment of soldiers, large or small, who fights in the way of Allah, gets its share of booty and returns safe and sound, receives in advance two- thirds of its reward (only one-third remaining to its credit will be received in the Hereafter). And a troop of soldiers, large or small, that returns disappointed and is afflicted by misery, will receive its full reward (in the Hereafter)."

[Muslim].

وعن عبد الله بن عمرو بن العاص، رضي الله عنهما، قال: قال رسول الله ﷺ: "ما من غازية أو سرية تغزو، فتغنم وتسلم، إلا كانوا قد تعجلوا ثلثي أجورهم، وما من غازية أو سرية تخفق وتصاب إلا تم لهم أجورهم" ((رواه مسلم)).