When to remove unwanted hair
How many days should one remove unwanted/pubic hair?
It is preferable that such cleanliness is attended to every week, particularly on Fridays i.e. a bath may be taken after pairing the nails, trimming of the moustache and removing the hair from the armpits and from below the navel. If the hair from the armpits and below the navel cannot be removed every week, one may remove them on alternate weeks. Its limit is 40 days, beyond which theĀ negligentĀ will be sinful.
(Riyadu-ul Jannah. V. 8 No. 1 P. 11 Q. 4)