[Lal]

I just revised that post to include this comment:
“I still have not seen a definitive Tipitaka reference regarding this issue. However, all suttas on the conditions for attaining Sōtapanna stage list saddham­mas­savanaṃ (saddham­ma + savanaṃ or “listening to Dhamma”) as one condition, as in #1 above. Since written texts were not available at the time of the Buddha, this is not definitive as a condition.”