Hazrat Tawus (may Allah have mercy on him) says that if a mukatab says to his master, "Reduce something from the amount of the contract of manumission and I will pay quickly," then there is no harm in it.

Hazrat Tawus says that there is no harm if a master says to his mukatab: "Pay quickly and I will reduce the amount of the contract of manumission."

It is narrated from Hazrat Sha'bi (may Allah have mercy on him) that if a man says to his mukatab, "I will reduce something for you, so pay quickly," he disliked this.

Hazrat Zuhri (may Allah have mercy on him) says that if a man makes his slave a mukatab (contracted for freedom) for a certain period in exchange for some dirhams, and then before the appointed time says to him, "Pay quickly and I will reduce the amount of the contract," there is no harm in this. He says that I have not seen anyone except Hazrat Ibn Umar (may Allah be pleased with them both) who disliked this; indeed, he used to dislike it, but he considered it permissible in exchange for goods.

23657 - He said: And I did not see anyone who disliked it except Ibn Umar, for he used to dislike that except with compensation (1).

Hasan and Ibn Sirin (may Allah have mercy on them) disliked that it be said to a mukatab, "Pay earlier than the appointed time and I will reduce something for you."

It was asked from Hazrat Ibn Abbas (may Allah be pleased with them both) that a person says to his mukatab, "Pay quickly and I will reduce something for you." He did not see any harm in this. Hazrat Waki' says that Hazrat Sufyan disliked this in matters of religion and mukatab.

23660 - Waki‘ said: And Sufyan disliked it in the case of the mukatab and debt.