Ahmed bin Salah al-Masri أحمد بن صالح المصري · Wages (Kitab Al-Ijarah)

Rafi' ibn Rifa'ah came to a meeting of the Ansar and said: The Prophet of Allah (ﷺ) forbade us (from some things) today, and he mentioned some things. He forbade the earning of a slave-girl except what she earned with her hand. He indicated (some things) with his fingers such as baking, spinning, and ginning.

The Messenger of Allah (ﷺ)forbade the price paid for a dog.

The Prophet (ﷺ) said: The price paid for a dog, the price given to a soothsayer, and the hire paid to a prostitute are not lawful.

They (the people) used to buy grain in the upper part of the market in the same spot without measuring or weighing it. The Messenger of Allah (ﷺ) forbade them to sell it there before removing it.