Malik related to me that he heard Ibn Shihab say, "The stray
camels in the time of Umar ibn al-Khattab were numerous and left
alone. No one touched them until the time of Uthman ibn Affan. He
ordered that they be publicised and then sold, and if the owner came
afterwards, he was given their price."
Muwatta Malik Book 36, Hadith 69