What is the ruling on one who vows to slaughter a specific sheep, and then it perishes?

The Shaykh : Ah, yes. No, no. The one who has this upon him must slaughter that specific sheep, and it should be like the 'Id sacrifice. If it is specified, meaning: he guarantees it if it perishes due to his transgression or negligence. Otherwise, the vow is dropped? Yes, if he specifies something in the vow, it becomes specified. If he does not do it, he is obligated to slaughter a substitute and expiate with the expiation for an oath.

The questioner : ... .

The Shaykh : And the expiation for an oath is for the case of specification.

The questioner : If it perishes without transgression.

The Shaykh : If it perishes without transgression or negligence, he owes nothing.