The baydar is the place where fruits and crops are gathered; it is also called the jarīn or baydar. When people harvested fruit, they would designate a spacious area in which to place it; likewise, when they reaped crops, they would designate a spacious area in which to thresh them. Thus, the obligation does not become definitive until they are placed in the threshing floor.
The evidence that the obligation becomes definitive upon placing them in the threshing floor is Allah’s saying: “Give its due on the day of its harvest.” When crops are harvested, they are immediately placed in the threshing floors.
If they perish after the fruit has begun to ripen and the grain has hardened, but before they are placed in the threshing floor, the zakah is waived—unless this resulted from his transgression or negligence, in which case it is not waived.
Once he has placed them in the threshing floor, zakah becomes due from him, even if they perish without any transgression or negligence on his part, because the obligation has become definitive upon him and has become a debt he owes.
Accordingly, the destruction of fruits and crops falls into three cases:
The first case: they perish before zakah becomes obligatory—that is, before the grain has hardened and before the fruit begins to ripen. In this case, the owner owes nothing whatsoever, whether they perish through his transgression, negligence, or otherwise, because zakah was not yet obligatory.
The second case: they perish after zakah has become obligatory but before they are placed in the threshing floor. This requires further detail: if this resulted from his transgression or negligence, he is liable for the zakah; but if it occurred without transgression or negligence, he is not liable.
The third case: they perish after being placed in the threshing floor—that is, after the fruit has been harvested and placed there, or after the crop has been reaped and placed there. In this case, zakah is due from him in all circumstances, because it has become definitive upon him and has become a debt he owes. When a person incurs a debt, the destruction of his property does not absolve him of it.