Hadithcore
Sahih Muslim, 1533 b
sahih

This hadith has been narrated on the authority of 'Abdullah b. Dinar with the same chain of transmitters but these words are not found in it." When he buys he should say:

There should be no attempt to deceive."

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا سُفْيَانُ، ح وَحَدَّثَنَا مُحَمَّدُ بْنُ، الْمُثَنَّى حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، كِلاَهُمَا عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، بِهَذَا الإِسْنَادِ مِثْلَهُ وَلَيْسَ فِي حَدِيثِهِمَا فَكَانَ إِذَا بَايَعَ يَقُولُ لاَ خِيَابَةَ ‏.‏

References2 variants
In-Book Reference
Book 21, Hadith 60
USC-MSA web (English) reference
Book 10, Hadith 3664 (deprecated numbering scheme)