Habib bin Maslamah (RAA) narrated, 'I witnessed the Messenger of Allah (ﷺ) give a quarter (of the war spoils) as an additional booty (to a Sariyah) when they gained booty on their way out to the fight, He also gave a third (of the war spoils) as an additional booty when they gained it on their way back. 'Related by Abu Dawud, Ibn al-Garud, Ibn Hibban and Al-Hakim graded it as Sahih. (RU)
English reference (RU): Book 11, Hadith 1332 (RU)
Arabic reference (RU): Book 11, Hadith 1305 (RU)