Abu Musa Ashari reported,

I was with the Prophet ﷺ in one of the gardens of Madinah when a man came and asked to be let in.The Prophet ﷺ said, "Open the gate for him and give him the good news of Paradise."I opened it, and there was Abu Bakr. I gave him the good news the Prophet ﷺ had announced, and he praised Allah.Then another man came and asked to be let in. The Prophet ﷺ said, "Open the gate for him and give him the good news of Paradise."I opened it, and there was Umar. I told him what the Prophet ﷺ had said, and he praised Allah.Then another man asked to be let in. The Prophet ﷺ said to me, "Open the gate for him and give him the good news of Paradise, along with a trial that will befall him."I opened it, and there was Uthman. I told him what the Messenger of Allah ﷺ had said. He praised Allah, then said, "Allah is the One whose help is sought."

حدثنا يوسف بن موسى حدثنا أبو أسامة قال حدثني عثمان بن غياث حدثنا أبو عثمان النهدي

عن أبي موسى رضي الله عنه قال

كنت مع النبي ﷺ في حائط من حيطان المدينة فجاء رجل فاستفتح فقال النبي ﷺ افتح له وبشره بالجنة ففتحت له فإذا أبو بكر فبشرته بما قال النبي ﷺ فحمد الله ثم جاء رجل فاستفتح فقال النبي ﷺ افتح له وبشره بالجنة ففتحت له فإذا هو عمر فأخبرته بما قال النبي ﷺ فحمد الله ثم استفتح رجل فقال لي افتح له وبشره بالجنة على بلوى تصيبه فإذا عثمان فأخبرته بما قال رسول الله ﷺ فحمد الله ثم قال الله المستعان