The Division of Spoils and Dishonesty regarding them - Section 2 Mishkat al-Masabih 4021
Arabic hadith text
وَعَن ابنِ عُمَرَ: أَنَّ جَيْشًا غَنِمُوا فِي زَمَنِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ طَعَامًا وَعَسَلًا فَلَمْ يُؤخذْ منهمُ الْخمس. رَوَاهُ أَبُو دَاوُد
Translation
Ibn ‘Umar said that in the time of God’s Messenger an army got food and honey in booty and a fifth was not taken from them. Abu Dawud transmitted it.