A non-Muslim worker who declared his Islam in a prayer hall

The questioner:
We return to our callers. Brother Muhammad from Riyadh, please go ahead. Peace be upon you and Allah's mercy. And upon you be peace and Allah's mercy and blessings. Yes. I have an Indian worker who works for us in the prayer hall. After he came to work, he said, "I am a Muslim." We told him, "Work, there is no problem." Is this permissible? Where is this prayer hall? Praise be to Allah, it is inside a unit. I mean, it is not in the mosque, right? No, it is not in the mosque; it is in a unit inside our place. And then we told him, "We desire that you embrace Islam before you enter." He said, "I bear witness that there is no god but Allah, and I bear witness that..." meaning he became a Muslim. I do not know about him, but perhaps it is so that you are not surprised by the location. Okay. Okay, may Allah reward you with good, O Muhammad. Listen to the answer now. Yes, Shaykh. Yes. He says that he has a worker.

The Shaykh:
They take him to the Cooperative Association for Good.

The presenter:
For calling to Islam and guidance, yes.

The Shaykh:
The Office for Calling to Islam and Guidance; they take him there and he declares his Islam in their presence so that they can certify his Islam, yes.

The presenter:
May Allah reward you.