I say, and with God's guidance: What you have done is a forbidden act; due to its deceit, treachery, and betrayal. The jurists mention something similar to your issue. Imam Al-Quduri and Imam Al-Razi said: "If a Muslim enters the land of war as a trader, it is not permissible for him to expose himself to any of their wealth or blood; due to His saying, the Exalted: {Fulfill the contracts}, and due to His saying, peace be upon him: (Muslims are bound by their conditions) in Sahih Al-Bukhari (2: 794) as a suspended narration, and in Al-Mustadrak (2: 57), and in Sunan Al-Bayhaqi Al-Kabir (6: 79), and in Sunan Al-Daraqutni (3: 27), and in Sharh Ma'ani Al-Athar (4: 90). If he betrays them and takes something and leaves with it, it becomes a prohibited possession for him, and he is commanded to give it in charity; because he acquired it through treachery, and it is forbidden." And Badr Al-Din Al-Ayni said in Manhat Al-Suluk (1: 349): "If he betrays in something and takes it out: he should give it in charity; because although he possessed it by seizing permissible wealth, it is prohibited, as it was obtained through treachery, which necessitates its impurity, thus he is commanded to give it in charity." Ibn Malik said in Sharh Ibn Malik (Q95/B): "If he betrays in something... and takes it to the land of Islam, he must give it in charity; because it is an impure possession." Imam Al-Mawsili said in Al-Ikhtiyar (4: 135): "If he takes something and brings it out, he should give it in charity; because he possessed it through a prohibited act, which is treachery and betrayal, and the way to deal with it is to give it in charity; because it is an impure possession." So as you can see from the texts of the jurists, this wealth is forbidden for you and your children, and you must give it in charity in a way that benefits the Muslims.