Is lying permissible in some cases,like a father is living with someone and the son having some financial problems,some weekends the son brings some food from outside which is not costly, for only to comfort his wife… …if he say truth to his father that food is from outside he knows that his father is angry on him that “you are wasting money” so he said to his wife that don’t say this is from outside and if she obey his husband may be Allah will not be happy with both of them.