Chapter on Sales
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 11
قَالَ: وَ سَأَلْتُهُ عَنِ اَلسِّمْسَارِ يَشْتَرِي بِالْأَجْرِ فَيُدْفَعُ إِلَيْهِ اَلْوَرِقُ وَ يُشْتَرَطُ عَلَيْهِ أَنَّكَ مَا تَشْتَرِي فَمَا شِئْتُ أَخَذْتُهُ وَ مَا شِئْتُ تَرَكْتُهُ فَيَذْهَبُ فَيَشْتَرِي ثُمَّ يَأْتِي بِالْمَتَاعِ فَيَقُولُ خُذْ مَا رَضِيتَ وَ دَعْ مَا كَرِهْتَ فَقَالَ "لاَ بَأْسَ".
He said: I asked Imam عليه السلام about a broker who buys for a fee. Money is handed over to him, and it is stipulated that whatever he buys, the buyer has the option to take what he likes and leave what he dislikes. The broker then goes and makes the purchase, and upon returning with the goods, he says, "Take what you are satisfied with and leave what you dislike." Imam عليه السلام said: "There is no harm in that."
- Ṣaḥīḥ al-Faqīh, p. 225