question #1 Sahih Muslim 1070b, Book 12, Hadith 214 : What does this narration teach about the importance of ensuring the source of one’s food is lawful and pure?

I go back to my family and I find a date lying on my bed or in my house, and I take it up to eat it, but then I throw it away fearing that it may be a Sadaqa or from Sadaqa.