My husband refuses to support me and my children financially. When all the money I have is spent, I take from his money without his knowledge in order to sustain myself and my children.
Am I sinful?
If the reality is as you mentioned, that you take from your husband's money to sustain yourself and your children, it is permissible for you to take some of his money on a reasonable basis. It was authentically reported that
Abu Sufyan's wife said:
"O Messenger of Allah!
Abu Sufyan is a miser; he gives me no money to sustain myself and my child, so I take from his money without his knowledge." The Prophet (peace be upon him) said, 'You can take what suffices you and your child on a reasonable basis.'"
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.