Full Sharh — Musnad Ahmad 406
حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، قَالَ قَالَ عَبْدُ اللَّهِ بْنُ شَقِيقٍ كَانَ عُثْمَانُ رَضِيَ اللَّهُ عَنْهُ يَنْهَى عَنْ الْمُتْعَةِ وَعَلِيٌّ رَضِيَ اللَّهُ عَنْهُ يَأْمُرُ بِهَا فَقَالَ عُثْمَانُ رَضِيَ اللَّهُ عَنْهُ لِعَلِيٍّ قَوْلًا ثُمَّ قَالَ عَلِيٌّ رَضِيَ اللَّهُ عَنْهُ لَقَدْ عَلِمْتَ أَنَّا قَدْ تَمَتَّعْنَا مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ أَجَلْ وَلَكِنَّا كُنَّا خَائِفِينَ.
English Translation
It was narrated that Qatadah said. `Abdullah bin Shaqeeq said:: `Uthman used to forbid mut’ah (of Hajj, i.e., tamattu`) and ‘Ali used to enjoin it. `Uthman said something to `Ali, then `Ali said: You know that we did tamattu` with the Messenger of Allah (ﷺ) . He said: Yes, but we were in a state of fear then.
Source
Musnad Ahmad(مسند أحمد)
Musnad Uthman ibn Affan
Hadith Number
406