Is Zakat obligatory for someone who sold agricultural land?

Zakat is not obligatory on agricultural lands and other similar properties unless they are prepared for trade. If they are, then zakat on trade goods becomes obligatory, which is one-quarter of one-tenth (2.5%) of their value upon the completion of a Hijri year. However, if they were not prepared for trade and then sold, there is no zakat on the lands themselves. Rather, zakat becomes obligatory on their price (the money received) if a year passes while it is in one's possession, after it reaches the minimum threshold (nisab) by itself or by being combined with other wealth.