The Shahada (Arabic: ٱلشَّهَادَةُ aš-šahādah [aʃ.ʃa.haː.dah] (listen), "the testimony"),[note 1] also spelled Shahadah, is an Islamic oath, one of the Five Pillars of Islam and part of the Adhan. It reads: "I bear witness that none deserves worship except God, and I bear witness that Muhammad is the messenger of God."

Shahada — arabic calligraphy.

The Shahada declares belief in the oneness (tawhid) of God (Allah) and the acceptance of Muhammad as God's messenger. Some Shias also include a statement of belief in the wilayat of Ali.[1] A single honest recitation of the Shahada in Arabic is all that is required for a person to become a Muslim according to most traditional schools.[2]