Is it permissible to perform the Istikhara prayer on behalf of another person?

Istikhara prayer is an act of worship in which deputization is not permissible. This is because the fundamental principle concerning acts of worship is that deputization is not allowed unless there is proof. Scholars have unanimously agreed that it is not permissible to pray on behalf of anyone, whether alive or dead. Therefore, whoever wishes to perform Istikhara should pray it themselves. However, it is permissible for others to supplicate for them, asking Allah to choose what is best for them in the matter that concerns them.