Jami` at-Tirmidhi 2891
جامع الترمذي#2891HasanNarrated Abu Hurairah:that the Prophet (ﷺ) said: "Indeed there is a Surah in the Qur'an of thirty Ayat, which intercedes for a man until he is forgiven. It is [Surah] Tabarak Alladhi Biyadihil-Mulk
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirHasan
Al-AlbaniHasan
Bashar Awad MaaroufHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 45:17