What are the consequences for someone who publishes a Hadith that is later proven to be fabricated, and they cannot identify those to whom they sent the Hadith, knowing that it does not contain legislative rulings?

Publishing da'wah messages is a form of good deed, but it is essential to verify their content and the authenticity of the hadiths contained within them, because transmitting fabricated hadiths and false stories is Haram (forbidden) in Islam. It is not permissible for anyone to say, "The Messenger of Allah, peace and blessings be upon him, said," while knowing that the hadith is fabricated, due to the Prophet's saying, "Whoever intentionally fabricates a lie against me, let him take his seat in Hellfire," and "Whoever narrates a hadith from me which he deems to be false, then he is one of the liars." It is forbidden to narrate a fabricated hadith or one that is most likely fabricated without clarifying its status. The expiation for publishing a fabricated hadith is to seek forgiveness (istighfar), inform those to whom the hadith was sent that it is fabricated, and not publish any hadith in the future until its authenticity is verified.