Ibn Umar's son, Abdullah bin Abdullah, came in to see him while his riding camel was in the courtyard, and said, "I do not feel safe that this year there may be fighting among the people which will keep you from reaching the House. It would be better if you stayed."Ibn Umar replied, "The Messenger of Allah ﷺ set out, and the disbelievers of Quraysh stood between him and the House. If anything stands between me and it, I will do as the Messenger of Allah ﷺ did." Then he recited, "You have indeed in the Messenger of Allah an excellent example" [Ahzab 33:21]. He said, "I make the intention for umrah."Then he set off, and when he reached al-Bayda he said, "I see that the two rites are but one. I call you to witness that I have joined hajj to my umrah." Then he arrived and made a single tawaf for both.
حدثنا إسماعيل أخبرنا أيوب
أن ابن عمر دخل عليه ابنه عبد الله بن عبد الله وظهره في الدار فقال إني لا آمن أن يكون العام بين الناس قتال فتصد عن البيت فلو أقمت فقال قد خرج رسول الله ﷺ فحال كفار قريش بينه وبين البيت فإن يحل بيني وبينه أفعل كما فعل رسول الله ﷺ فقال {لقد كان لكم في رسول الله أسوة حسنة} قال إني قد أوجبت عمرة ثم سار حتى إذا كان بالبيداء قال ما أرى أمرهما إلا واحدا أشهدكم أني قد أوجبت مع عمرتي حجا ثم قدم فطاف لهما طوافا واحدا
Its isnad is sahih. Malik related it in brief in Muwatta 1:329, 330, from Nafi. Bukhari related it, 4:3–5, through Malik, and related it at greater length with the same meaning through Juwayriyah from Nafi. Muslim also related it, as noted in Fath al-Bari. This turmoil referred to in the hadith is the arrival of Hajjaj's army to fight Abdullah bin Zubayr in Makkah. A similar hadith with the same meaning will come later at 4595.