Assalaamu alaykum, my Muslim Brother. Is there any hadith with an explanation or benefit regarding reciting a Quranic verse which, if a person recites it during a day, he will not die on that particular day, like the Quranic verse "Lakaad Jaakum".

All perfect praise be to Allah, The Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad is His slave and Messenger. 

After investigation, we have not found any text from the texts of revelation or statements of the scholars that proves what you mentioned in the question.

Allah knows best.