one. If that intercession assists him (1) in righteousness and piety, it is a good intercession; but if it assists him in sin and transgression, it constitutes intercession (2) of an evil kind. Righteousness is whatever you have been commanded to do, and sin is whatever you have been forbidden to do. And if they are liars, Allah does not guide the schemes of the treacherous.
Allah Most High has said: “Indeed, the penalty for those who wage war against Allah and His Messenger and strive to spread corruption in the land is that they be killed or crucified, or that their hands and feet be cut off on opposite sides, or that they be banished from the land. That is a disgrace for them in this world, and in the Hereafter they will suffer a tremendous punishment (33)—except those who repent before you apprehend them. Know that Allah is All-Forgiving, Most Merciful.” [al-Māʾida: 33–34] Thus, He exempted only those who repent before being apprehended. Anyone who repents after being apprehended remains among those upon whom the prescribed punishment is due (3), by virtue of the verse’s general wording, its implication, and its underlying legal rationale.
This applies when the offense has been established by evidence. If, however, it was established by confession, and the offender comes confessing his offense in repentance, there is a scholarly disagreement concerning this that is discussed elsewhere. The apparent position of Ahmad’s school is that carrying out the prescribed punishment is not obligatory in such a case. Rather, if he asks for it to be carried out upon him, it is carried out; but if he leaves, no prescribed punishment is imposed upon him. It is in this light that the hadith of Māʿiz ibn Mālik was understood, when he said, “Why did you not leave him?” (4),