Man Lā Yaḥḍuruh al-Faqīh
Hadith 3904019 - وَ رَوَى مُعَاوِيَةُ بْنُ عَمَّارٍ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ : قُلْتُ لَهُ يَجِيئُنِي اَلرَّجُلُ يَطْلُبُ بَيْعَ اَلْحَرِيرِ مِنِّي وَ لَيْسَ عِنْدِي مِنْهُ شَيْءٌ فَيُقَاوِلُنِي وَ أُقَاوِلُهُ فِي اَلرِّبْحِ وَ اَلْأَجَلِ حَتَّى نَجْتَمِعَ عَلَى شَيْءٍ ثُمَّ أَذْهَبُ فَأَشْتَرِي لَهُ وَ أَدْعُوهُ إِلَيْهِ فَقَالَ "أَ رَأَيْتَ إِنْ وَجَدَ بَيْعاً هُوَ أَحَبُّ إِلَيْهِ مِمَّا عِنْدَكَ أَ يَسْتَطِيعُ أَنْ يَنْصَرِفَ إِلَيْهِ وَ يَدَعَكَ أَوْ وَجَدْتَ أَنْتَ ذَلِكَ أَ تَسْتَطِيعُ أَنْ تَنْصَرِفَ عَنْهُ وَ تَدَعَهُ" قُلْتُ نَعَمْ قَالَ "لاَ بَأْسَ".
Hadith.4019 - Mu'awiyah ibn Ammar narrated from Abu Abdullah (as):
I said to Imam (as), "A man comes to me asking to buy silk, but I do not have any. We negotiate about profit and payment terms until we agree on something. Then I go and buy it for him and invite him to complete the transaction."
Imam (as) said: "What if he finds another deal that he prefers over what you have, can he leave you and go for it? Or if you find a better deal, can you leave him and pursue it?"
I said: "Yes."
Imam (as) said: "Then there is no harm."