Zayd bin Khalid reported,

A man asked the Messenger of Allah ﷺ about a found item, and he said, "Announce it for a year, then take note of its string and its container, and after that you may make use of it. But if its owner comes, hand it over to him."The man asked, "Messenger of Allah, what about a stray sheep?"He replied, "Take it, for it is either yours, or your brother's, or the wolf's."The man asked, "Messenger of Allah, what about a stray camel?"At this the Messenger of Allah ﷺ became angry until his cheeks flushed red, or his face flushed red, and he said, "What business have you with it? It has its own hooves and its own water supply until its owner finds it."This is like the report of Malik, except that he added that the narrator said, "A man came to the Messenger of Allah ﷺ while I was with him and asked him about a found item." Amr also said in his version, "If no one comes seeking it, then make use of it."

Muslim 4500

Sahih

و حدثني أبو الطاهر أخبرنا عبد الله بن وهب أخبرني سفيان الثوري ومالك بن أنس وعمرو بن الحارث وغيرهم أن ربيعة بن أبي عبد الرحمن حدثهم بهذا الإسناد مثل حديث مالك غير أنه زاد قال أتى رجل رسول الله ﷺ وأنا معه فسأله عن اللقطة قال وقال عمرو في الحديث فإذا لم يأت لها طالب فاستنفقها

مسلم 4500صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Lost property
Chapter
Knowing the container and the string, and the ruling on stray sheep and camels
Numbering
Darussalam 4500
Muslim 4500