Man Lā Yaḥḍuruh al-Faqīh
Hadith 6843801 - وَ رَوَى اَلْعَلاَءُ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَحَدِهِمَا عَلَيْهِمَا اَلسَّلاَمُ : فِي اَلرَّجُلِ يَشْتَرِي اَلْمَتَاعَ جَمِيعاً بِثَمَنٍ ثُمَّ يُقَوِّمُ كُلَّ ثَوْبٍ بِمَا يَسْوَى حَتَّى يَقَعَ عَلَى رَأْسِ مَالِهِ يَبِيعُهُ مُرَابَحَةً ثَوْباً ثَوْباً قَالَ "لاَ حَتَّى يُبَيِّنَ لَهُ أَنَّهُ إِنَّمَا قَوَّمَهُ ".
Hadith.3801 - Al-'Ala narrated from Muhammad ibn Muslim, from one of the Imams (as), regarding a man who purchases goods altogether for a set price and then appraises each garment based on its value until it equals his capital, selling it item by item at a profit
Imam (as) said: "No, not until he clarifies to the buyer that he merely appraised it."