Q1:
It true that it is saying of HOLY PROPHET (SAW) that the one who annoys his parents and hurts them neither their prayers and fasting are accepted and nor other good deeds and they will go to hell?
A:
There is no doubt that being ungrateful to one's parents (Uqooq) in any form is amongst the greatest prohibitions that the Almighty lord promised the doer to be punished in hellfire.
