Abstract

The suicide accounts of three bhikkhus in sutta literature probably inspired the formulation of a particular type of person who attains Arahantship at death, later designated as an ‘equal-headed’ person in the Abhidhamma. The Therav?da tends to depict those bhikkhus as non-Arahants before suicide. The Pali commentary explains that they did not attain Arahantship until their deaths and refers to two of them as each being an ‘equal-header’. By contrast, the Sarv?stiv?da s?tras and Abhidharma portray them as Arahants during their lifetimes. The Sarv?stiv?dins deny the concept of samas?sin proposed by the Vibh?jyav?dins, which include the Therav?da and Dharmaguptaka schools. The Pali commentaries provide various explanations and classifications of samas?sin, which have one idea in common: the term signifies the concurrence of two events, and it denotes at least a person who only becomes an Arahant at death, and sometimes someone who becomes an Arahant at the same time as a certain kind of event occurs. The Pa?isambhid?magga, a quasi-Abhidhamma text, has a chapter that expounds ‘equal-head’ in an oblique way by enumerating various kinds of sama and of s?sa separately. The Pa?isambhid?magga commentary tries to make sense of the term samas?sa by associating this textual exposition of sama and s?sa with the more commonly found term samas?sin.