May Allah bless you Shaikh, I'm having a discussion with a friend with regards to plagiarism being haram. I state that it is but can't seem to find clear proofs with regards to it. Is stating the hadith of: "the one who cheats is not one of us" sufficient, and what does the scholars say?

Ustadh AbdulAziz al-Haqqan

If you claim it to be yours and it is not this is cheating and not allowed as u mentioned.