Answer:
(Fatwa: 117/118=L)
When the amount is in your possession and you did not spend it in marriage, then you have to pay zakah incurred on the amount, provided you possess the wealth equal to nisab (prescribed amount) of zakah for a complete lunar year.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
