the Prophet (ﷺ) said "When three persons are together, then no two of them should hold secret counsel excluding the third person."
Sahih al-Bukhari Book 79, Hadith 60
← Previous Hadith I saw Allah's Messenger (ﷺ) lying on his back in the mosque and putting one of his legs over the other.

Sahih al-Bukhari Book 79, Hadith 59 Next Hadith → The Prophet (ﷺ) confided to me a secret which I did not disclose to anybody after him. And Um Sulaim asked me (about that secret) but I did not tell her.

Sahih al-Bukhari Book 79, Hadith 61