Abu Malik Ashjai reported,

I also heard him say to the people, "Whoever declares the oneness of Allah and rejects whatever is worshipped besides Him, his property and his blood become inviolable, and his reckoning rests with Allah."

قال وسمعته يقول للقوم من وحد الله وكفر بما يعبد من دونه حرم ماله ودمه وحسابه على الله عز وجل