'Ash-hadu 'an lā 'ilāha 'illallāhu waḥdahu lā sharīka lahu wa 'ash-hadu 'anna Muḥammadan `abduhu wa Rasūluhu. I bear witness that none has the right to be worshipped but Allah alone, Who has no partner; and I bear witness that Muhammad is His slave and His Messenger. Reference: Muslim 1/209.