The Division of Spoils and Dishonesty regarding them - Section 1 Mishkat al-Masabih 3991
Arabic hadith text
وَعَنْهُ قَالَ: نَفَّلَنَا رَسُولُ اللَّهِ صلى الله عَلَيْهِ وَسلم نَفَلًا سِوَى نَصِيبِنَا مِنَ الْخُمُسِ فَأَصَابَنِي شَارِفٌ والشارف: المسن الْكَبِير
Translation
He said
God’s Messenger gave us booty apart from our share of the fifth, and I got a sharif, which is a very old camel. (Bukhari and Muslim.)