There is a group of Shiite (Shia) who have wrongly claimed, “there is a creation which is eternal (beginning-less, always existing)”, they sometimes call it “the first intellect”. This claim is illogical, it goes against the mind (^aql). Further to that it goes against the below narration in Al-Kafi authenticated by Al-Majlasiyy (https://thaqalayn.net/hadith/1/3/12/2).
This narration outlines, that nothing is eternal (beginningless, always existing) besides Allah
LINK: https://thaqalayn.net/hadith/1/3/12/2
For the sake of clarity: Not all Shiites believe in that claim.
As for the People of Truth, Ahlus-Sunnah, we are united upon the belief every creation has a beginning. This is what the Quran, Sunnah and Ijma^ teach.