Samurah bin Jundub (RAA) narrated that the Messenger of Allah (ﷺ) said:
"The words dearer to Allah are four: 'How perfect Allah is and all praise is for Allah. None has the right to be worshipped except Allah alone and Allah is great It does not matter which you say first." Related by Muslim. (IT)
English reference (IT): Book 16, Hadith 1589 (IT)
Arabic reference (IT): Book 16, Hadith 1546 (IT)