لا شك أن قصد المخبر بخبره إفادة المخاطب إما الحكم أو كونه عالما به
A speaker reports something either to inform the hearer of the judgment itself or to show that the speaker already knows that judgment.
The first purpose is fāʾidat al-khabar, the primary informational benefit. If the hearer does not know that Zayd succeeded, “نَجَحَ زَيْدٌ” supplies new information.
The value of this report lies in communicating a previously unknown predication, not in its length or ornament. This prepares the question of how much emphasis the audience actually needs.