Jami` at-Tirmidhi 427
جامع الترمذي#427SahihUmm Habibah narrated that:Allah's Messenger (S) said: "Whoever prays four before Az-Zuhr and four after, Allah makes him prohibited for the Fire
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 2:280