Is there a reward for writing the salutation upon the Messenger of Allah, or only for speaking it?

Question : Sometimes one writes the salutation upon the Prophet (peace and blessings be upon him) without speaking it, and sometimes he speaks it without writing it. Sometimes a person writes the name of the Prophet (peace and blessings be upon him) and then writes the salutation without speaking it, so that it becomes a salutation.

Answer : Yes. What do you say? A man wrote, "The Prophet (peace and blessings be upon him) said," and he wrote it. Is he like the one who spoke it? It appears so, because the Prophet (peace and blessings be upon him) said: Thus, he made writing part of the session of acknowledgment. Likewise, the scholars said that if a man writes the divorce of his wife in a way that the writing makes it clear, the divorce takes effect, so they made writing like speaking.