Look! O Shurayḥ, if you have purchased this, house from money other than yours or paid the price from unlawful source, you have incurred loss of this world as well as of the next. If you had come to me at the time of purchase I would have written for you a document on this paper and then you would not have liked to purchase the house even for one Dirham, not to speak of more. That document is this:-