Is zakat obligatory on a sum of $965 saved for approximately one year and three months, given the absence of a monthly or weekly income, and what is the amount on which zakat becomes obligatory?

Zakat becomes obligatory on wealth when it reaches the nisab (threshold) and a full lunar year (hawl) has passed over it. The hawl for wealth that is accumulated gradually begins from the day it reaches the nisab on its own, or when it is combined with other wealth owned by the individual. Zakat must be paid upon the completion of the lunar year, and the obligation of Zakat does not lapse due to the passage of time, even if the due date has passed. The nisab for currency is equivalent to 85 grams of gold or 595 grams of silver, and the amount of Zakat that must be paid is two and a half percent (one-quarter of one-tenth). Zakat is not obligatory if the wealth does not originally reach the nisab, or if it reaches it but then decreases before the end of its hawl.