Sahih Muslim 1586
Sahih Muslim · Book 22: The Book of Musaqah · Exchange and Selling Gold for Silver on the spot
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ ، وَزُهَيْرُ بْنُ حَرْبٍ ، وَإِسْحَاقُ ، عَنِ ابْنِ عُيَيْنَةَ ، عَنِ الزُّهْرِيِّ ، بِهَذَا الإِسْنَادِ .
This hadith has been narrated on the authority of Zuhri with the same chain of transmitters.