The Ruling on Najash (Bidding Up the Price) and the Option of Excessive Loss
Machine translationRead the Arabic original
Question:
Honorable Shaykh, does any bid or offer become valid?
Answer:
Bidding up the price (najash) is permissible, but the buyer has the option if he finds out and was deceived by a significant amount; in that case, he has the option. The jurists have mentioned that one of the types of options is the option of najash, meaning if it becomes clear to him that he was deceived because of the bidding up, he has the option to remove the harm from himself. Yes.
Honorable Shaykh, does any bid or offer become valid?
Answer:
Bidding up the price (najash) is permissible, but the buyer has the option if he finds out and was deceived by a significant amount; in that case, he has the option. The jurists have mentioned that one of the types of options is the option of najash, meaning if it becomes clear to him that he was deceived because of the bidding up, he has the option to remove the harm from himself. Yes.
Source
شرح بلوغ المرام من أدلة الأحكام [ صالح الفوزان ]، تابع باب شروطه وما نهي عنه منه - 2 — islamhouse.com (36:36)
The Arabic text is a machine transcription of the audio recording.