On every Wednesday, I will share a part of the translation of the book Kitab Al-Kasb (the book of Earning a Livelihood) written by Muhammad Ibn Al-Hasan Al-Shaybani.
Part 4: Two Types of Earning and Their Legal Status
Now, there are two types of earning: (1) the earning of a person for himself; and (2) the earning of a person against himself.
1. As for the earner for himself, he is the seeker of what is necessary for him of the permissible (things).
2. The earner against himself is the one who covets that which is against him, and in which there is a sin, for instance, that which is acquired by the thief.
The second type (of earning) is prohibited by consensus, (for) Allah Most High says, “And whoever commits a sin only earns against his own soul” [Al-Quran, surah An-Nisa’ (4): 111]. And He, Most Exalted, Most Glorious, says, “But whoever earns an offense or a sin and then blames it on an innocent [person] has taken upon himself a slander and manifest sin” [Al-Quran, surah An-Nisa’ (4): 112].