✅Answer:

1 إبراهيم الكرخي قال: اشْتَرَيْتُ لِأَبِي عَبْداللَّه جَارِيَةً فَلَمَّا ذَهَبْتُ أَنْقُدُهُمْ قُلْتُ أَسْتَحِطُّهُمْ قال لا إِنَّ رَسُولَ اللَّه نَهَى عَنِ الِاسْتِحْطَاط بَعْدَ الصَّفْقَة

📚 Al-Kafi, Vol. 5, p. 286

Ibrahim al-Karkhi said: I bought a maid for Imam Sadiq (peace be upon him), and when I wanted to go and pay for it, I said to him: Should I ask them to lower the price? He said: No! Indeed, the Messenger of Allah (peace be upon him and his family) forbade asking for a discount and lowering the price after a contract has been concluded!

2 Zayd al-Shahham said: I brought a maid to Abu Ja'far Muhammad ibn Ali and offered her to him. He started bargaining with me, and I bargained with him, and then I sold her to him, and he gave me the hand of the transaction!

I said: May I be sacrificed for you! I bargained with you to see if bargaining is appropriate or not, and I said: I have lowered the price by ten dinars for you!

The Imam said: Far from it! Why was this not before the contract was concluded?! Has the saying of the Messenger of Allah (peace be upon him and his family) not reached you, who said:

(Lowering the price after the sales contract has been concluded is forbidden!)

3 From Ali Abu al-Akrad, he said: I said to Abu Abdullah: I take on work that involves dyeing and engraving, so I stipulate with the engraver on something between me and him: ten pairs for five dirhams and twenty for ten. So when it is time for the accounting, I say to him: Do me a favor! And I ask him to lower the price from what I had stipulated with him. The Imam said: Is it with his willing consent? I said: Yes, he said: There is no problem!

📚 Al-Tahdheeb, Vol. 7, p. 234

Abu Akrad said: I said to Imam Sadiq (peace be upon him): I take on work that involves dyeing and engraving, so I stipulate with the engraver on something between myself and him, ten pairs for five dirhams and twenty pairs for ten dirhams. So when it is time for the reckoning, I say to him: Be kind! And I ask him to lower the price from what I had stipulated with him. The Imam said: Is it with his willing consent? I said: Yes, he said: There is no problem!

📚 Al-Tahdheeb, Vol. 7, p. 233

Ma'li said: I asked Imam Sadiq (peace be upon him) about a person who buys a commodity and then asks for a discount and a reduction in its price; the Imam said: There is no problem, and the Imam ordered me to talk to a man about this matter!

4 معلى بن خنيس قال: سَأَلْتُ أَبَا عَبْداللَّه عَنِ الرَّجُلِ يَشْتَرِي الْمَتَاعَ ثُمَّ يَسْتَوْضِعُ قال لَا بَأْسَ و أَمَرَنِي فَكَلَّمْتُ لَهُ رَجُلًا فِي ذَلِك

📚 Al-Tahdheeb, Vol. 7, p. 233

Ya'qub said: I said to Imam Sadiq (peace be upon him): A person asks another for a gift after he has made a purchase, and he gives it to him, is it appropriate for him? He said: Yes!

5 يونس بن يعقوب عن أَبي عبداللَّه قال: قُلْتُ لَهُ الرَّجُلُ يَسْتَوْهِبُ مِنَ الرَّجُلِ الشَّيْءَ بَعْدَ مَا يَشْتَرِي فَيَهَبُ لَهُ أَيَصْلُحُ لَهُ قال نَعَم

6 From Abu al-Attar, he said: I said to Abu Abdullah: I buy food and lose on the first part of it and profit on the last part, so I ask its owner to reduce the price for me by so and so much on every 'karr'. The Imam said: There is no good in this, but he should give you a discount on the whole. I said: What if he gives me a discount more than what I have lost? He said: There is no problem with that!

📚 Al-Tahdheeb, Vol. 7, p. 38

Abu Attar said: I said to Imam Sadiq (peace be upon him): I buy food and lose on the first part of it and profit on the last part, so I ask its owner to give me a discount of so and so much on every 'karr' of it. The Imam said: There is no good in this, but he should give you a discount on the whole. I said: What if he gives me a discount more than what I have lost? He said: There is no problem with that!

📚 Faqih, Vol. 3, p. 232

Yusuf said: I said to Imam Sadiq (peace be upon him): A person buys a commodity from another and after the purchase, he asks for a gift (a portion of the price of the commodity) from him, without forcing him to do so. The Imam said: There is no problem!

7 يوسف بن يعقوب قال:قلت لأبي عبدالله الرَّجُلُ يَشْتَرِي من الرَّجُل الْبَيْع فَيَسْتَوْهِبُهُ بَعْد الشِّرَاء مِنْ غَيْر أَنْ يَحْمِلَهُ على الْكُرْهِ قَالَ لَا بَأْس به

✅ Although in narrations 1 and 2 , it is forbidden to ask for a discount after the transaction has been concluded and the contract has been made, in other narrations, it is permitted if the other party willingly and internally agrees and is not forced to do something against his will and is not coerced.