(36) باب التَّمَتُّعِ عَلَى عَهْدِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ
Narrated `Imran:
We performed Hajj-at-Tamattu` in the lifetime of Allah's Messenger (ﷺ) and then the Qur'an was revealed (regarding Hajj-at-Tamattu`) and somebody said what he wished (regarding Hajj-at-Tamattu`) according his own opinion.
Reference: Sahih al-Bukhari 1571
In-book reference: Book 25, Hadith 57
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 26, Hadith 642