What is the authenticity of the Hadith, "Whoever recites Ayatul Kursi after every prayer, nothing will prevent him from entering Paradise except death; and none is assiduous in doing so except a Siddiq (truthful one) or an Abid (worshipper). And whoever recites it when he goes to bed, Allah will grant him safety for himself, his neighbor, his neighbor's neighbor, and the houses around him," narrated from Ali (may Allah be pleased with him)?

The aforementioned hadith is not attributed to the Prophet, peace and blessings be upon him; rather, it is a نقل of Al-Qurtubi's statement regarding it. The beginning of the hadith: "Whoever recites Ayat al-Kursi after every prayer, nothing prevents him from entering Paradise except death" is authentic, and it was narrated by Al-Nasa'i, Ibn Hibban, and others with authentic chains of transmission, and Al-Albani graded it as authentic. As for the phrase: "Only a truthful person (siddiq) or a worshiper ('abid) perseveres in it," it appeared in another weak hadith.