It is narrated from Hasan Basri that when Sayyiduna Ma'qil bin Yasar (may Allah be pleased with him) became heavy due to illness, Ubaydullah bin Ziyad came to him to visit and said: O Ma'qil! Have I committed bloodshed? He replied: I do not know. He then said: Do you know if I have interfered in the prices of the Muslims in any way? He replied: No, I do not know. Then Sayyiduna Ma'qil (may Allah be pleased with him) said: Lift me up and make me sit. Then he addressed Ubaydullah and said: I will narrate to you a hadith which I have not heard once or twice from the Prophet (peace and blessings be upon him), (but have heard many times). The Messenger of Allah (peace and blessings be upon him) said: Whoever interferes in the prices of the Muslims and makes it expensive for them, it is incumbent upon Allah to seat him in a vast place of fire on the Day of Resurrection. Ubaydullah said: Did you hear this from the Messenger of Allah (peace and blessings be upon him)? He replied: Yes, many times, not just once or twice.