permanent banishment. Rather, whenever a person deserves banishment for an offense, it remains possible that he may later deserve to be returned to his homeland. Banishment is either for a fixed term, as in the one-year banishment of an unmarried fornicator according to the majority of scholars; such a person is returned after the year. Or it is indefinite, as with the banishment of an effeminate man; such a person is banished (1) until he repents. Umar likewise employed banishment as a discretionary punishment for drinking wine.
Accordingly, it cannot be maintained that, over a period of more than a dozen years, al-Hakam did not repent of the offense for which he had been banished. If he repented of his offense—after such a long interval—it was permissible for him to be brought back.
The Prophet—may Allah bless him and grant him peace—ordered that the three who had been left behind be shunned for fifty nights. Allah then accepted their repentance, and the Muslims resumed speaking to them.
Umar—may Allah be pleased with him—banished Subaygh ibn Asal al-Tamīmī when he openly pursued the ambiguous passages, seeking discord and seeking their interpretation. He had him beaten and ordered the Muslims to shun him for a year after he had professed repentance. Then, when he repented, Umar instructed the Muslims to speak to him (2).