Accepting Information Given by a Truthful Person

Bukhari :: Book 9 :: Volume 91 :: Hadith 367

Narrated Abu Musa:

The Prophet entered a garden and told me to guard its gate. Then a man came and asked permission to enter. The Prophet, said, "Permit him and give him the good news that he will enter Paradise." Behold! It was Abu Bakr. Then 'Umar came, and the Prophet said, "Admit him and give him the good news that he will enter Paradise." Then 'Uthman came and the Prophet said, "Admit him and give him the good news that he will enter Paradise. "