Is the منظومة "إضاءة الدجنة في اعتقاد أهل السنة" authoritative in creed, and what are the recommended concise creedal منظومات?

The author of the system in question is an Ash'ari, and he composed it on Ash'ari creed, which includes the allegorical interpretation of attributes. This contradicts the belief of the righteous predecessors (Salaf al-Salih). There are other poetic systems that contain the creed of Ahl al-Sunnah, such as "Sullam al-Wusul" by Hafiz al-Hakami, "Al-Saffariniyyah," "Nuniyyah Ibn al-Qayyim," "Nuniyyah al-Qahtani," and the introduction to "Nazm Mukhtasar Khalil" by Al-Shinqiti. There are also important prose summaries on the creed of Ahl al-Sunnah wal-Jama'ah, including: the introduction to Ibn Abi Zayd's "Risalah," "Al-Ibanah" by Al-Ash'ari, "Al-Aqidah al-Tahawiyyah," "Al-Wasitiyyah" by Ibn Taymiyyah, "Kitab al-Tawhid" and its commentaries, and "Al-Qawa'id al-Muthla" by Ibn Uthaymeen. The introduction to Ibn Abi Zayd's "Risalah" has been versified twice.

The most important references that strengthen faith are the Book of Allah the Almighty, the books of Sunnah, biographies (Siyar), and authentic stories of the prophets. A Muslim should allocate daily time to ponder the Holy Quran, read prophetic hadiths, and study the biographies of the prophets and the righteous predecessors.