The ruling on praying the funeral prayer for the absent one for someone who died and no funeral prayer was performed for him

The questioner:
Some say: Did he pray the funeral prayer for the absent one for someone whose state was like that of the Najashi, whose Islam was known, and who died without a funeral prayer being performed for him?

The Shaykh:
Perhaps it is even greater. It is impossible for a Muslim king not to be followed by any of his subjects; this is impossible. People follow kings. But he prayed for him to manifest his virtue and status, and for the sake of additional reward. And if a king becomes Muslim and no one else does—neither his family nor anyone else—this is impossible.

The questioner:
What contradicts this is that they did not know the upcoming prayer.

The Shaykh:
As long as he entered Islam, he was one who delved into the understanding of Islam. He learned, and he was with Ja'far for more than seven years. A group of the Companions entered [Islam], a large gathering of the Companions. Yes.