Sahih Bukhari

Narrated Abu Musa:The Prophet (ﷺ) 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 (ﷺ) said, ""Admit him and give him the good news that he will enter Paradise."" Then `Uthman came and the Prophet (ﷺ) said, ""Admit him and give him the good news that he will enter Paradise