Assalamualaikum,
I would like to know if this is acceptable in Shari’a. In this tradition, 40 days after the baby is born women go to some other relative’s house and take bath to become pure so that they can pray, as per some people’s assumption they have to go to some relative’s house and when they return to thier home they clean-up all house and then it is considered pure and after that they hold big feast. Does Islam has any iota of any Sunnah like this.
Jazakallah

الجواب وباللہ التوفیق
The action inquired about is absolutely baseless and unfounded. It is wajib to relinquish such practices.
واللہ اعلم بالصواب