“I once asked abu Ibrahim, Alayhi al-Salam, about the case of a man who mortgaged a slave and the house and they suffered loss; if it was compensated by a particular party. He (the Imam) said, ‘His master is responsible.’ He (the Imam) then said, ‘Suppose if someone is murdered who is responsible?’ I replied, ‘It is on the neck of the slave.’ He (the Imam) said, ‘Do you not consider that his property is not gone?’ He (the Imam) then said, ‘Consider, if his price was one hundred dinar and it increased up to two hundred dinars. To whom does it (the increase) belong?’ I replied, ‘It belongs to his master.’ He (the Imam) said, ‘In the same way it is on him just as it is for him.’”