The Kitáb-i-Aqdas
70.Exile and imprisonment are decreed for the thief   ¶45
Bahá’u’lláh states that the determination of the degree of penalty, in accordance with the seriousness of the offence, rests with the House of Justice (Q&A 49). The punishments for theft are intended for a future condition of society, when they will be supplemented and applied by the Universal House of Justice.