Jami` at-Tirmidhi 1106
جامع الترمذي#1106SahihAbu Hurairah narrated that:The Messenger of Allah said: "Every Khutbah that does not have the Tashah-hud in it, then it is like a severed hand
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: 11:27