When is the prayer for guidance (istikharah) performed?

The Shaykh : And this one says, "Dura' Nawaaf." Well, in any case, based on your speech, not your writing, he says, "I am distressed, Nawaaf." He asks: Which is correct regarding the supplication for guidance (du'a' al-istikharah): is it to resolve to do one of the two things and then perform the istikharah, or is it to perform the istikharah while hesitating and being confused between two things? No, the istikharah is performed when there is hesitation, so that Allah chooses for him what is better. For example, if he wants to travel but does not know if it is good or not, he performs the istikharah. But if he knows it is good, he does not need the istikharah.