The ruling on transitioning from a specific voluntary prayer to a general voluntary prayer

The questioner : He transitioned from a specific voluntary prayer to a general voluntary prayer. Brother, yes, is that right? Yes, that is right.

The Shaykh : Yes. Is it valid or not? It is not valid, yes, O Muhammad.

The questioner : When transitioning from the specific to the general.

The Shaykh : Yes, that is the ruling, O Shaykh. The reasoning with the ruling is not permissible except with Muhammad. Because the specific voluntary prayer included two intentions: the general and the specific prayer. So if the specific is cancelled, the general remains. Is that clear? Good.