Sentence:  ... "marid" named Zu‘azi‘, to whom he gave a dirham's weight of volatile banj. ‘Go to  Isbanir,'; he told him, ‘and make for Gharib's palace in the shape of a sparrow.  Wait until he falls asleep and there is no one else there; then take the <WSD>"banj</WSD>" and  put it in his nostrils, after which you are to bring him to me.' 
Meaning of the word marked with <WSD> tags:  Hashish or henbane.