I saw one of them making du'a' at the grave of the Prophet (peace and blessings be upon him), so I forbade him, and he said, “I call upon Allah in every place, and likewise at the grave of the Prophet!”

Question:
Honorable Shaykh, may Allah grant you success. He says: I saw one of them making du'a' at the grave of the Prophet (peace and blessings be upon him), so I forbade him from doing so, and he said, “I call upon Allah in the mosque, in my home, at the grave of the Prophet (peace and blessings be upon him), and in every place.”

Answer:
No, at the grave of the Prophet, no, do not call upon Allah there. Stand in the Prophet’s Mosque, face the qiblah, and call upon Allah (Mighty and Majestic). No one has prevented you from doing so. As for facing the grave and making du'a', this is not permissible. If you are calling upon the Prophet, that is shirk (associating partners with Allah). If you are calling upon Allah at the grave of the Prophet, that is a bid'ah (religious innovation) that leads to shirk. Yes.