Paying Zakah when having less than the Nisab

Q: Is it permissible for me to pay Zakah (obligatory charity) to the specified categories of people while I do not have the money on which Zakah is due (do not have the Nisab, i.e., the minimum amount on which Zakah is due), on the condition that I deduct what I pay from the obligatory Zakah when I have the amount of money on which Zakah is due in the future?

A: What you pay in this case can not be considered as Zakah for the money you expect to obtain in the future, because, at the time of payment, you do not have the money.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.