Marwan bin Hakam reported,

I witnessed Uthman and Ali رضي الله عنهم, and Uthman was forbidding tamattu and combining hajj and umrah together. When Ali saw this, he entered into ihram for both, saying, "Labbayk with an umrah and a hajj." He then said, "I would not abandon the Sunnah of the Prophet ﷺ for the statement of anyone."

Bukhari 1563

Difficult

حدثنا محمد بن بشار حدثنا غندر حدثنا شعبة عن الحكم عن علي بن حسين

عن مروان بن الحكم قال

شهدت عثمان وعليا رضي الله عنهما وعثمان ينهى عن المتعة وأن يجمع بينهما فلما رأى علي أهل بهما لبيك بعمرة وحجة قال ما كنت لأدع سنة النبي ﷺ لقول أحد

البخاري 1563مشكل
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Hajj
Chapter
Tamattu, qiran, and ifrad in Hajj, and canceling Hajj for one who did not have a sacrificial animal
Numbering
Darussalam 1563
Bukhari 1563