Prayer: What Should One Do When the Qiblah Direction Is Completely Uncertain?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: What Should One Do When the Qiblah Direction Is Completely Uncertain?

English:

Question #366:

What should a person do in a place where he does not knows the direction of the qiblah for sure or with probability, i.e., all four directions enjoy equal chances to be that of the qiblah?

Answer #366:

In the given question it will be obligatory, as per obligatory caution, to perform the prayer in all four directions and if there is not enough time for offering four prayers, one should perform the prayers in as many directions as time allows.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer