The obligatory prayer behind the one performing a voluntary prayer

Question:
To proceed: Shaykh, they sold the Muslims' bathhouse for two thousand [currency] at the beginning of the Muslims' prayer.

Answer:
There is nothing wrong with a person who intends to pray the obligatory prayer following someone who is praying a voluntary prayer. The one praying the obligatory prayer may follow the one praying the voluntary prayer, and vice versa; the one praying the voluntary prayer may follow the one praying the obligatory prayer. There is no objection to this, because Mu'adh (may Allah be pleased with him) used to pray the 'Isha' prayer with the Prophet (peace and blessings be upon him), then go out and pray the 'Isha' prayer again. The Prophet (peace and blessings be upon him) approved of this for him. He only criticized him for prolonging the prayer because he recited Surat al-Baqarah, which was burdensome for the followers, and some of them criticized him for the length and ordered him to shorten it. He did not criticize him for praying with them a voluntary prayer while they were praying the obligatory prayer. So there is nothing wrong with that, if Allah wills. Yes.