Imam Malik's Muwatta, Chapter: Jihad

Yahya related to me from Malik from Yahya ibn Said from Muhammad ibn Yahya ibn Habban from Ibn Abi Amra that Zayd ibn Khalid al-Juhani said, "A man died on the day of Hunayn, and they mentioned him to the Messenger of Allah, may Allah bless him and grant him peace." Zayd claimed that the Messenger of Allah, may Allah bless him and grant him peace, said, "You pray over your companion." (i.e. he would not pray himself). The people's faces dropped at that. Zayd claimed that the Messenger of Allah, may Allah bless him and grant him peace, said, "Your companion stole from the spoils taken in the way of Allah." Zayd said, "So we opened up his baggage and found some Jews' beads worth about two dirhams."