A man came to the Prophet ﷺ and said, "I am often betrayed in bargaining." The Prophet ﷺ advised him, "When you buy something, say (to the seller), 'No deception." The man used to say so afterwards.  

رَجُلٌ لِلنَّبِيِّ ﷺ إِنِّي أُخْدَعُ فِي الْبُيُوعِ فَقَالَ إِذَا بَايَعْتَ فَقُلْ لاَ خِلاَبَةَ فَكَانَ الرَّجُلُ يَقُولُهُ  

A man came to the Prophet ﷺ and said, "I am often betrayed in bargaining." The Prophet ﷺ advised him, "When you buy something, say (to the seller), 'No deception." The man used to say so afterwards. (Using translation from Bukhārī 2407)  

رَجُلٌ لِلنَّبِيِّ ﷺ إِنِّي أُخْدَعُ فِي الْبَيْعِ فَقَالَ إِذَا بَايَعْتَ فَقُلْ لَا خِلَابَةَ فَكَانَ الرَّجُلُ يَقُولُهُ  

[Machine] A man asked the Prophet ﷺ, "O Messenger of Allah, I am a man who is deceived in business transactions?" The Prophet ﷺ replied, "If you have made a transaction, then say 'no deception.'"  

سَأَلَ رَجُلٌ النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللهِ إِنِّي رَجُلٌ أُخْدَعُ فِي الْبَيْعِ؟ فَقَالَ النَّبِيُّ ﷺ إِنَّهُ مَنْ بَايَعْتَ فَقُلْ لَا خِلَابَةَ  

[Machine] A man came to the Prophet ﷺ and said, "O Messenger of Allah, I have been deceived in a transaction." The Prophet then said, "If you sell, say 'there is no deceit'."  

جَاءَ رَجُلٌ إِلَى النَّبِيِّ ﷺ فَقَالَ يَا رَسُولَاللهِ إِنِّي أُخْدَعُ فِي الْبَيْعِ فَقَالَ إِذَا بِعْتَ فَقُلْ لَا خِلَابَةَ