Uthman bin Abdullah reported,

A man from Egypt came to perform the pilgrimage to the House. He saw a group of people sitting together and asked, "Who are these people?"They replied, "They are Quraysh."He asked, "Who is the elder among them?"They said, "Abdullah bin Umar."So he said, "Ibn Umar, I am going to ask you about something, and I urge you by the sanctity of this House to answer me. Do you know that Uthman fled on the day of Uhud?"Ibn Umar replied, "Yes."The man asked, "And do you know that he was absent from Badr and did not take part in it?"Ibn Umar replied, "Yes."The man asked, "And do you know that he stayed away from the Pledge of Ridwan?"Ibn Umar replied, "Yes."The Egyptian then exclaimed, "Allahu Akbar!"Ibn Umar said, "Come here, let me explain to you what you have asked about. As for his fleeing on the day of Uhud, I bear witness that Allah has pardoned him and forgiven him for it. As for his absence from Badr, he was married to the daughter of the Messenger of Allah ﷺ, and she was ill. The Messenger of Allah ﷺ said to him, 'You will have the reward of a man who was present at Badr, and his share of the spoils.' As for his absence from the Pledge of Ridwan, if there had been anyone in the heart of Mecca more honored and protected than Uthman, the Messenger of Allah ﷺ would have sent him instead. But the Messenger of Allah ﷺ sent Uthman, and the Pledge of Ridwan took place after Uthman had already departed."Then the Messenger of Allah ﷺ struck one of his hands upon the other and said, "This is for Uthman."Ibn Umar then said, "Take this answer with you now."

Ahmad 5772

Sahih

حدثنا عفان حدثنا أبو عوانة

حدثنا عثمان بن عبد الله بن موهب قال

جاء رجل من مصر يحج البيت قال فرأى قوما جلوسا فقال من هؤلاء القوم فقالوا قريش قال فمن الشيخ فيهم قالوا عبد الله بن عمر قال يا ابن عمر إني سائلك عن شيء أو أنشدك أو نشدتك بحرمة هذا البيت أتعلم أن عثمان فر يوم أحد قال نعم قال فتعلم أنه غاب عن بدر فلم يشهده قال نعم قال وتعلم أنه تغيب عن بيعة الرضوان قال نعم قال فكبر المصري فقال ابن عمر تعال أبين لك ما سألتني عنه أما فراره يوم أحد فأشهد أن الله قد عفا عنه وغفر له وأما تغيبه عن بدر فإنه كانت تحته ابنة رسول الله ﷺ وإنها مرضت فقال له رسول الله ﷺ لك أجر رجل شهد بدرا وسهمه وأما تغيبه عن بيعة الرضوان فلو كان أحد أعز ببطن مكة من عثمان لبعثه بعث رسول الله ﷺ عثمان وكانت بيعة الرضوان بعدما ذهب عثمان فضرب بها يده على يده وقال هذه لعثمان قال وقال ابن عمر اذهب بهذا الآن معك

أحمد 5772صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Abdullah bin Umar
Numbering
Darussalam 5772
Ahmad 5772