Hadith #103 (Sahih Muslim)
Book: The Book of Faith
Narrator(s): Tamim al-Dari
Grade: Sahih

“The Religion is sincerity.” We said, “To whom?” He said “To Allah, to His Book, To His Messenger, and to the leaders of the Muslims and their masses.”

Source: https://parallelquran.com/hadith/sahih-muslim-103/

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Hadith #7204 (Sahih Muslim)
Book: The Book of Tribulations and Portents of the Last Hour
Narrator(s): Tamim al-Dari
Grade: Sahih

If I were to be permitted to set out I would have covered all the lands except Taiba. Then Allah’s Messenger (ﷺ) brought (Tamim Dari) before the public and he narrated to them and said: That is Taiba and that is the Dajjal.

Source: https://parallelquran.com/hadith/sahih-muslim-7204/