Vibhaṅga is the sophisticated high-level Dhamma explaining various classifications: Pañcakkhandha (Five Aggregates), Āyatana (Twelve Spheres), the six Dhātu (Six Elements), the eighteen Dhātu (Eighteen Elements), Ariya Sacca (Four Noble Truths), and Indriya (Twenty-two sense-faculties), followed by explanations comparative to human life.
Colophon:
The principal initiator was Pu (grandfather) Kaeo, together with his siblings, who sponsored the writing of this manuscript entitled Seven Treatises of Abhidhamma, so that Buddhism could be prolonged until [the end of] 5,000 years. May the merit derived from writing this manuscript be transferred to my younger brother named Nan (ex-monk) Sīvijaya.