Raising the Voice in the Salam of the Funeral Prayer

Question:
He says: Honorable Shaykh, may Allah grant you success. It is reported that the salam in the funeral prayer is for the imam to hear himself and those around him, and I did not find a hadith stating otherwise. So, should I raise my voice, or should I act according to this hadith?

Answer:
If you are praying over him alone, you do not raise your voice in the salam. But if you are praying over him and there is a congregation behind you, and you are the imam with a congregation behind you, then you must raise your voice, because they do not know [when to stop] unless you say the salam, so they say it with you. The imam was appointed to be followed. You must raise your voice in the salam so that they say it with you; otherwise, who would know that you have said the salam? Yes.