I pledged allegiance to the Prophet ﷺ. She informed him that the Emigrants drew lots, and Uthman bin Mazun fell to our share, so we lodged him in our home. He fell ill with the sickness from which he died. When he died and was washed and shrouded in his garments, the Messenger of Allah ﷺ entered.I said, "May Allah's mercy be upon you, Abu Saaib. My testimony concerning you is that Allah has honored you."The Prophet ﷺ said, "How do you know that Allah has honored him?"I said, "May my father be ransom for you, Messenger of Allah. Whom else would Allah honor?"He said, "As for him, certainty has come to him. By Allah, I hope good for him. By Allah, though I am the Messenger of Allah, I do not know what will be done with me."She said, "By Allah, I will never declare anyone pure after him."
بايعت النبي ﷺ- أخبرته أنه اقتسم المهاجرون قرعة، فطار لنا عثمان بن مظعون، فأنزلناه في أبياتنا، فوجع وجعه الذي توفي فيه، فلما توفي وغسل وكفن في أثوابه دخل رسول الله ﷺ فقلت: رحمة الله عليك أبا السائب، فشهادتي عليك، لقد أكرمك الله. فقال النبي ﷺ: وما يدريك أن الله أكرمه؟ فقلت: بأبي أنت يا رسول الله، فمن يكرمه الله؟ فقال: أما هو فقد جاءه اليقين، والله إني لأرجو له الخير، والله ما أدري وأنا رسول الله ما يفعل بي. قالت: فوالله لا أزكي أحدا بعده أبدا.
Bukhari narrated it in the Book of Funerals (1243) from Yahya bin Bukayr, who said, Layth narrated to us, from Aqeel, from Ibn Shihab, who said, Kharija bin Zayd bin Thabit informed me that Umm Ala mentioned the hadith.This hadith is one that Bukhari alone narrated. Ibn Hajar attributed it in al-Isabah to the Sahihayn, but this is a mistake on his part, may Allah have mercy on him. Uthman bin Mazun died after having taken part in the Battle of Badr, in the second year after the Hijrah. He was the first of the migrants to die in Madinah, and the first to be buried in Baqi.As for his statement, "By Allah, I do not know, even though I am the Messenger of Allah, what will be done with me," Ibn Hajar said in al-Fath (3/115-116), "The Messenger of Allah ﷺ said that in agreement with the words of Allah Almighty in Surah Ahqaf, "Say, I am not something new among the messengers, and I do not know what will be done with me or with you" [Ahqaf 46:9]. This was before the revelation of the words of Allah Almighty, "So that Allah may forgive you what preceded of your sin and what followed" [Fath 48:2], since Ahqaf is a Makkan surah while Surah Fath is a Madinan surah without any disagreement about either of them. It has been established that he ﷺ said, 'I am the first to enter Paradise,' along with other reports that are explicit in this meaning."I say, perhaps he said that out of humility before Allah Almighty. There are other opinions on this matter, so refer to Nawasikh al-Quran by Ibn Jawzi and others.