What is the ruling regarding the two oaths I swore: the first when I said, "And by divorce, I will not do a Subu' (Aqiqah celebration for a newborn), nor do I know if they—meaning my in-laws—will do it or not," with the intention of precaution; and the second when I said, "And by divorce, the fish has been grilled," even though I did not know whether the fish had actually been grilled or not, bearing in mind that I meant that the grilling had begun?

The preponderant opinion is that whoever swears by divorce concerning a matter, and is truthful, their divorce does not take effect, even if the matter turns out to be contrary to what they swore by. Based on this, your first oath does not result in divorce because of your truthfulness. And if you did not intend to lie in the second oath, then there is no breaking of the oath for you; for intention is considered in what the wording can bear, and your phrase can mean that the man grilled some of the fish or was close to finishing. Know that the permissible oath is to swear by Allah the Almighty, whereas swearing by divorce is among the oaths of the dissolute and can lead to dire consequences.