The ruling on contenting oneself with the obligatory prayers without the regular voluntary prayers

Question:
The questioner says: Shaykh, what is the reward for maintaining the regular voluntary prayers? And if a person is content with only the obligatory prayers and maintains them, is there anything required of him?

Answer:
Yes, he is not required to do anything other than the obligatory prayers, but these regular voluntary prayers are a precautionary measure; if there is a deficiency in the obligatory prayers, it is made up from these regular voluntary prayers and other voluntary acts. The Muslim needs to increase in good deeds and needs what completes his obligatory acts. Yes.