(الحنيفية) مِلَّة الْإِسْلَام ويوصف بهَا فَيُقَال مِلَّة حنيفية وَضرب من السيوف مَنْسُوب إِلَى الْأَحْنَف بن قيس لِأَنَّهُ أول من اتَّخذهُ

حَنِيفِيَّة
من (ح ن ف) ملة الإسلام، وضرب من السيوف منسوب إلى الأحنف بن قيس.

Hanifism: Hanifism is the religion of Ibrāhim (Abraham) (peace be upon him) that Allah instilled in human nature, commanded all people to follow, and approved it for them. Allah Almighty says: {So direct your face toward the religion, inclining to truth. [Adhere to] the fitrah of Allah upon which He has created [all] people. No change should there be in the creation of Allah. That is the correct religion, but most of the people do not know} [Al-Rūm: 30]. It is the Muhammadi creed, which is the only creed accepted by Allah. It is the essence of Islam that Allah sent all the messengers to preach. It includes belief in the Oneness of Allah and belief in His angels, His books, His messengers, the Last Day, fate, with the good and bad thereof, and not worshiping idols.
“Hanīf” is the upright person who adheres to Islam, the one who turns towards Allah and stays away from everything other than Him. Those who do not adhere to Hanifism are the disbelievers, including the People of the Book.