From Sahih Muslim (Hadith 7346):
Abu Sa'id reported that Allah's Messenger (ﷺ) met him (Ibn Sayyad) and so did Abu Bakr and 'Umar on some of the roads of Medina. Allah's Messenger (ﷺ) said:Do you bear testimony to the fact that I am the Messenger of Allah? Thereupon he said: Do you bear testimony to the fact that I am the messenger of Allah? Thereupon Allah's Messenger (ﷺ) said: I affirm my faith in Allah and in His Angels and in His Books, and what do you see? He said: I see the throne over water. Whereupon Allah's Messenger (ﷺ) said: You see the throne of Iblis upon the water, and what else do you see? He said: I see two truthfuls and a liar or two liars and one truthful. Thereupon Allah's Messenger (ﷺ) said: Leave him He has been confounded
Reference: Muslim 7346