This is because they disbelieved in the Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) of Allah and killed the Prophets without right.
Wannan kuwa dõmin sũ, lalle sun kasance suna kãfirta da ãyõyin Allah, kuma suna kashe annabãwa, bã da wani haƙƙi ba.