Is it permissible to delay ghusl for
janaabah until after dawn has broken? Is it permissible for women to delay ghusl following
the end of menstruation or post-natal bleeding until after dawn has broken?

Praise be to Allaah.

If a woman sees that she has become taahir (pure) before
Fajr, then she has to fast, and it does not matter if she delays ghusl until after dawn
has broken. But she should not delay it until the sun is risen. The same applies in the
case of junub (impurity after sexual activity), one should not delay ghusl until after the
sun has risen and in the case of men, they should hasten to do ghusl so that they can pray
Fajr with the jamaa’ah (in the mosque).