Am I obligated to pay Zakat on money deposited in my name for 10 years, and how is it calculated if it is in a fluctuating foreign currency, and how can the source of this money, which came from a shop selling alcohol and pork, be analyzed, and what is my duty towards my deceased father?

The money must be withdrawn from the usurious bank and deposited in an Islamic bank or elsewhere. The usurious interest should be spent on the welfare of Muslims, and it is permissible for a poor person to benefit from it to the extent of their need. Zakat (definition) on the money for past years is obligatory, and the Zakat should be calculated based on the currency saved or its value. It is obligatory to cease trading in alcohol and pork and to dispose of the illicit money generated from them. If the amount is unknown, an estimate should be made. It is recommended to pray for and seek forgiveness for the father and to give charity on his behalf.