References – AN 3.12: To be Remembered 
“In what cases, if any, is it useful to try to assess whether stream entry has occurred? Or is this question best left aside?” Answered by Ajahn Pasanno. [Stream entry] // [Proliferation]
Sutta: AN 3.12: The place where one attains stream entry is never fogotten.
Suttas: SN 55.1, SN 55.42: Stream entry described in terms of faith in the Three Refuges, virtue, and generosity. [Three Refuges] [Faith] [Virtue] [Generosity]