Lost Things Picked up by Someone (Luqaata)

Bukhari :: Book 3 :: Volume 42 :: Hadith 612

Narrated Anas:

The Prophet passed a date fallen on the way and said, "Were I not afraid that it may be from a Sadaqa (charitable gifts), I would have eaten it."

Narrated Abu Huraira: The Prophet said, "Sometimes when I return home and find a date fallen on my bed, I pick it up in order to eat it, but I fear that it might be from a Sadaqa, so I throw it."