Hadith #422 (Sahih Muslim)
Book: The Book of Faith
Narrator(s): al-Nu'man bin 'Abd al-Salam النعمان بن عبد السلام بن حبيب
Grade: Sahih

I heard the Messenger of Allah (ﷺ) say: the least suffering for the inhabitants of Hell on the Day of Resurrection would be for the man under whose soles would be placed two embers and his brain would boil on account of them.

Source: https://parallelquran.com/hadith/sahih-muslim-422/

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Hadith #1589 (Sahih Muslim)
Book: The Book of Prayer - Travellers
Narrator(s): al-Nu'man bin 'Abd al-Salam النعمان بن عبد السلام بن حبيب
Grade: Sahih

He who observed twelve voluntary rak’ahs, a house will be built for him in Paradise.

Source: https://parallelquran.com/hadith/sahih-muslim-1589/