Fadala ibn 'Ubayd reported that the Prophet, may Allah bless him
and grant him peace, said, "Do not ask about three:
a man who parts company
with the community, rebels the ruler and dies while he is a still a rebel.
Do not ask about him. Or a slave or slavegirl who runs away from his master.
Or a woman whose husband is absent and who has sufficient provision and
then displays her adornments to strangers and mixes freely. Do not ask
about three: a man who contends with Allah regarding His cloak. His cloak
is pride and His wrapper is His might. Also a man who doubts the command
of Allah. and someone who despairs of Allah's mercy."