How sound is the story of "A Dead Person Recounting the Story of His Death" and the horrors of death it contains, and is it permissible to publish it?

The deceased does not return to this world after their true death. Allah has made an exception to this for those whom He resurrected for a specific wisdom. The communication between the dead and the living in a conscious state is not possible according to the explicit meanings of the Quranic texts, which affirm the existence of a barzakh (interim barrier) separating them from this world until the Day of Judgment.

Ibn Hibban narrated from Jabir ibn Abdullah ibn Haram, may Allah be pleased with both of them, that the Prophet, peace and blessings be upon him, informed him that Allah Almighty resurrected his father and spoke to him directly after his martyrdom, saying to him, "Make a wish, and I will grant it to you." His father wished to be returned to life to be killed in the cause of Allah once again. Thereupon, Allah Almighty said, "Indeed, I have decreed that they shall not return."

Therefore, stories whose authenticity is not established should not be spread. It is advised to engage in learning, teaching, and spreading the Quran and authentic hadiths.