Hadith #6689 (Sahih Muslim)
Book: The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness
Narrator(s): al-Aghr Abu Muslim الأغر أبو مسلم
Grade: Sahih

I bear witness to the fact that both Abu Huraira and Abu Sa’id Khudri were present when Allah’s Messenger may peace be upon him) said: The people do not sit but they are surrounded by angels and covered by Mercy, and there descends upon them tranquillity as they remember Allah, and Allah makes a mention of them to those who are near Him. This hadith has been narrated on the authority of Shu’ba with the same chain of transmitters.

Source: https://parallelquran.com/hadith/sahih-muslim-6689/

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Hadith #3469 (Jami' al-Tirmidhi)
Book: Chapters on Supplication
Narrator(s): Abdur-Razzaq عبد الرزاق بن همام, Abu Hurairah, Abu Ishaq al-Sabay'ai' أبو إسحاق السبيعي عمرو بن عبد الله, Abu Sa'id al-Khudri, al-Aghr Abu Muslim الأغر أبو مسلم, Mahmud bin Ghaylan محمود بن غيلان العدوي مولاهم أبو أحمد, Sufyan bin Sa‘id Ath-Thawri سفيان الثوري

The Messenger of Allah (ﷺ) said to his Companions: “Say ‘Glory is to Allah and with His Praise (Subḥān Allāh, wa biḥamdih)’ a hundred times. Whoever says  will forgive him.”

Source: https://parallelquran.com/hadith/jami-al-tirmidhi-3469/