Allah the Exalted said: << اذهب بكتابي هذا فألقه إليهم ثم تول عنهم فانظر ماذا يرجعون >

He said: Then he said to the hoopoe: [Surat al-Naml: 28]. If someone says: His saying: [Surat al-Naml: 28] implies that he believed him, is this correct? Or is this a test for him? Because his saying: [Surat al-Naml: 28] indicates that he believed him in that, and for this reason he wrote to them, or is it said: This is part of the test? Meaning that if he were lying, he would say: There is no one, I did not find anyone, for example, so this would be part of the means of testing related to his saying: [Surat al-Naml: 27], yes.
And it can be said: That his saying: [Surat al-Naml: 27] contains an implied meaning in the verse, so he looked and verified his truthfulness, then he gave him the letter, yes. He is now... We, Allah knows best what happened, so either this letter is part of his test, like if a person informs you of news and you say, for example: Go, bring me a sample of it, if he said, for example: Such-and-such a commodity is being sold in the market now, I would say: Oh Allah! Take this and go, bring me a sample of it, and what...
The student: I verify it.

The Shaykh : I test whether it is true or not, and if the apparent reality is that I gave him the money to buy it, the apparent reality is that I...?
The student: Believed him.

The Shaykh : Believed him, but this may be one of the means of testing.
So the result is: If Sulayman (peace be upon him) verified this matter and then sent the letter, the matter is clear, but there is nothing in the Qur'an indicating that, so we say: Giving him the letter is one of the means that clarify his truthfulness.
And his saying: [Surat al-Naml: 28] referred to it for specification, because Sulayman writes to them and to others, but he specified the letter he wrote to them. [Surat al-Naml: 28] meaning: Bilqis and her people.
[Surat al-Naml: 28] He turned away from them and stopped nearby, The hoopoe took it and threw it to them, meaning: he placed it before them, and he turned away from them as Sulayman instructed him, but this turning away is not far, as indicated by his saying: [Surat al-Naml: 28], for his saying: [Surat al-Naml: 28] indicates that this turning away is near her. And in it are benefits that will come, if Allah wills. Then: [Surat al-Naml: 28] She took the letter and read it.