The Method of Fulfilling a Vow with Currency

The questioner:
May Allah reward you. One of the Yemeni brothers residing in Saudi Arabia says: “Peace be upon you, and Allah’s mercy and blessings.” I made a vow six years ago, saying, “O Lord, if You grant me what I desire, I will give charity with a certain amount.” My intention was in Yemeni riyals, and I am residing in Saudi Arabia. Six years ago, the Saudi riyal was worth sixty Yemeni riyals, but now the riyal is worth one hundred and sixty Yemeni riyals. How should the payment be made, in Yemeni riyals or in Saudi riyals?

The Shaykh:
The default is in Yemeni riyals, the country in which the obligation was incurred. If you pay the equivalent amount in Saudi riyals, there is no harm in that. Yes.

The questioner:
Even if the value of the riyal had dropped to half.

The Shaykh:
He owes nothing [in terms of additional liability]. The point is that he pays out the currency he vowed in his country, or its equivalent and substitute. Yes.