(a), a term of Islamic law meaning literally, “striking hands together”. The parallel root
p-ḳ (and in other places, more correctly,
p-ḳ ) is found in Biblical Hebrew, cf. Isa. ii. 6 “they strike hands with foreigners”.
Ṣafḳa is a non-Ḳurʾānic word, but
taṣdiya is found in sūra VIII, 35, with a comparable meaning. Technically,
safḳa has come to mean the ratification of a commercial contract, a formal, symbolic act for concluding a contract which has been disregarded in practice by Islamic law. Striking hands together, although associated with sale (
bayʿ ), should be designated