SuttaCentral
Hello dear friends and respected venerables. I have one question can anybody answer that and cite any sutta if it’s there in EBT…
Is there any example of any person attaining stream entry while dying? I mean either bandits killing him or any kind of violent death…but while dying he/she became stream-enterer. Is there any such example in any sutta?
Thank you in advance everyone. 
I don’t know about that, but I know that some non-arahant noble ones attaining arahant on deathbed, so perhaps it’s not out of question.
Yes, Sarakani. (SN55.24)
Now at that time Sarakāni the Sakyan had passed away.
The Buddha declared that he was a stream-enterer, not liable to be reborn in the underworld, bound for awakening.
…
Mahānāma, Sarakāni the Sakyan undertook the training at the time of his death.
Besides Sakarani, I can’t remember other specific examples, in the EBT, of Sotapatti-Attainment at the time of death. But there are many suttas that speak about the followers of teachings (Dhamma-follower) and the followers by faith (Faith-followers), two kinds of persons bound to at least stream-entry until the end of their present lives:
In this teaching there are mendicants who have ended three fetters. All of them are stream-enterers, not liable to be reborn in the underworld, bound for awakening.
In this teaching there are mendicants who are followers of teachings [Dhamma-followers], or followers by faith [Faith-followers]. All of them are bound for awakening.
There is an essay about these individuals in this platform, by @Gabriel :
https://discourse.suttacentral.net/t/faith-follower-dhamma-follower/5778
The Buddha said in many occasions that many of his disciples were in these stage of development. These two kinds of persons still have the three lower fetters (self-view, doubts and clinging to precepts-and-rituals), but they have enough understanding of the Dhamma or enough faith in the Buddha, plus five qualities: faith, energy, mindfulness, concentration and wisdom. It’s a sort of pre-sotapanna stage.