Al-Baqarah 2:9

YukhadiAAoona Allaha wallatheenaamanoo wama yakhdaAAoona illa anfusahum wamayashAAuroon

They [think to] deceive Allāh and those who believe, but they deceive not except themselves and perceive [it] not.

They try to deceive Allah and those who believe, while they are not deceiving anyone except themselves, although they are unaware of it.