Narrated 'Imran:

We performed Hajj-at-Tamattu' in the lifetime of Allah's Apostle and then the Quran was revealed (regarding Hajj-at-Tamattu') and somebody said what he wished (regarding Hajj-at-Tamattu') according his own opinion.

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا هَمَّامٌ، عَنْ قَتَادَةَ، قَالَ حَدَّثَنِي مُطَرِّفٌ، عَنْ عِمْرَانَ ـ رضى الله عنه ـ قَالَ تَمَتَّعْنَا عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ فَنَزَلَ الْقُرْآنُ قَالَ رَجُلٌ بِرَأْيِهِ مَا شَاءَ.