I asked al-Zubair : What prevents you from narrating traditions from the Messenger of Allah (ﷺ) as his Companions narrate from him? He said: By Allah I was very close to him. But I heard him (ﷺ) say: He who lies about me deliberately will certainly come to his abode in Hell.
The Prophet (ﷺ) said: If anyone guards a believer from a hypocrite, Allah will send an angel who will guard his flesh on the Day of Resurrection from the fire of Jahannam; but if anyone attacks a Muslim saying something by which he wishes to disgrace him, he will be restrained by Allah on the bridge over Jahannam till he is acquitted of what he said.