Studies of practices under Mamluk and Ottoman rule found no instances of the oaths of li'an or abstinence being used, while conditional talaq seems to have played a prominent role. It was used to issue various threats to the wife as well as to make promises. In Ottoman Egypt marriage contracts commonly included stipulations of conditional talaq which were not otherwise recognized by the prevailing Hanafi school as grounds for judicial divorce, such as non-payment of maintenance or marrying a second wife.