صَحِيحُ مُسْلِمٍ
Sahih Muslim 1588 b
The Book of Musaqah
Exchange and Selling Gold for Silver on the spot
وَحَدَّثَنِيهِ أَبُو سَعِيدٍ الأَشَجُّ، حَدَّثَنَا الْمُحَارِبِيُّ، عَنْ فُضَيْلِ بْنِ غَزْوَانَ، بِهَذَا الإِسْنَادِ . وَلَمْ يَذْكُرْ يَدًا بِيَدٍ .
This hadith has been narrated on the authority of Fudail b. Ghazwan with the same chain of transmitters, but he made no mention of (payment being) made on the spot.
Sahih Muslim, 1588 bSahihصحيح