Sahih Muslim Book 18, Hadith Number 4280.

Chapter : Stray thing found by anyone.

Shu’ba reported: Salama b. Kuhail informed me or he informed people and I was among them. He said: I heard Sawaid b. Ghafala who reported: I went out along with Zaid b. Suhan and Salman b. Rabi’a, and found a whip, the rest of the hadith is the same up to the words: “I made use of that.” Shu’ba said: I heard him say after ten years, that he made an announcement of it for one year.