D'a wa ta'ajjil
Definition of "D'a wa ta'ajjil"
Lit: Reduce and pay soon. Tech: A principle of credit trade in vogue among Arabs of the sixth century in which a debtor was given the option of getting a reduction in debt, provided he agreed to pay cash immediately. A varied form of this is known as cash discount these days. This practice was prohibited by Islam, being tantamount to riba.