* "The shahadah is the declaration of faith in Islam, stating 'There is no god but Allah, and Muhammad is the messenger of Allah.'" (This explains what the shahadah is)
* "Upon converting to Islam, the new Muslim must recite the shahadah before witnesses." (This describes a specific action with the shahadah)
* "The shahadah is considered the most important prayer in Islam, as it signifies one's belief in God." (This emphasizes the significance of the shahadah)
* "He declared his belief in Allah by reciting the shahadah loudly and clearly." (This shows a specific instance of someone using the shahadah)
Remember that "shahadah" is a noun referring to the Islamic declaration of faith.