Um Al-`Ala an Ansari woman who had given a pledge of allegiance to Allah's Messenger (ﷺ) told me:, "The Muhajirln (emigrants) were distributed amongst us by drawing lots, and we got `Uthman bin Maz'un in our share. We made him stay with us in our house. Then he suffered from a disease which proved fatal. When he died and was given a bath and was shrouded in his clothes. Allah's Messenger (ﷺ) came, I said, (addressing the dead body), 'O Aba As-Sa'ib! May Allah be Merciful to you! I testify that Allah has honored you.' Allah's Messenger (ﷺ) said, 'How do you know that Allah has honored him?" I replied, 'Let my father be sacrificed for you, O Allah's Messenger (ﷺ)! On whom else shall Allah bestow. His honor?' Allah's Messenger (ﷺ) said, 'As for him, by Allah, death has come to him. By Allah, I wish him all good (from Allah). By Allah, in spite of the fact that I am Allah's Messenger (ﷺ), I do not know what Allah will do to me.", Um Al-`Ala added, "By Allah, I will never attest the righteousness of anybody after that."
Sahih al-Bukhari Book 91, Hadith 21
← Previous Hadith Allah's Messenger (ﷺ) used to visit Um Haram bint Milhan she was the wife of 'Ubada bin As-Samit. One day the Prophet (ﷺ) visited her and she provided him with food and started looking for lice in his head. Then Allah's Messenger (ﷺ) slept and afterwards woke up smiling. Um Haram asked, "What makes you smile, O Allah's Messenger (ﷺ)?" He said, "Some of my followers were presented before me in my dream as fighters in Allah's Cause, sailing in the middle of the seas like kings on the thrones or like kings sitting on their thrones." (The narrator 'Is-haq is not sure as to which expression was correct). Um Haram added, 'I said, "O Allah's Messenger (ﷺ)! Invoke Allah, to make me one of them;" So Allah's Messenger (ﷺ) invoked Allah for her and then laid his head down (and slept). Then he woke up smiling (again). (Um Haram added): I said, "What makes you smile, O Allah's Messenger (ﷺ)?" He said, "Some people of my followers were presented before me (in a dream) as fighters in Allah's Cause." He said the same as he had said before. I said, "O Allah's Messenger (ﷺ)! Invoke Allah to make me from them." He said, "You are among the first ones." Then Um Haram sailed over the sea during the Caliphate of Muawiya bin Abu Sufyan, and she fell down from her riding animal after coming ashore, and died.

Sahih al-Bukhari Book 91, Hadith 20 Next Hadith → Regarding the above narration, The Prophet (ﷺ) said, "I do not know what Allah will do to him (Uthman bin Maz'un)." Um Al-`Ala said, "I felt very sorry for that, and then I slept and saw in a dream a flowing spring for `Uthman bin Maz'un, and told Allah's Messenger (ﷺ) of that, and he said, "That flowing spring symbolizes his good deeds."

Sahih al-Bukhari Book 91, Hadith 22