Ṣaḥīḥ Muslim
صَحِيحُ مُسْلِم
Considered one of the two most authentic collections of aḥādīth, second only to Bukhārī. It is unclear whether the author assigned a name to this book and it is commonly known as Ṣaḥīḥ Muslim (صحيح مسلم) (The Authentic Collection by Muslim). Sources: sunnah.com for the Arabic text and English translation. The English translation has been improved by myself and other contributors.
Random ḥadīth in Muslim
Allah, the Exalted and Majestic, said: Fast (is exclusively) meant for Me and I would give its reward. There are two (occasions) of joy for the observer of fast. He feels joy when he breaks the fast and he is happy when he meets Allah. By Allah in Whose Hand is the life of Muhammad, the breath of the observer of fast is sweeter to Allah than the fragrance of musk.
عَنْ أَبِي هُرَيْرَةَ وَأَبِي سَعِيدٍ ؓ قَالاَ قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ اللَّهَ ﷻ يَقُولُ إِنَّ الصَّوْمَ لِي وَأَنَا أَجْزِي بِهِ إِنَّ لِلصَّائِمِ فَرْحَتَيْنِ إِذَا أَفْطَرَ فَرِحَ وَإِذَا لَقِيَ اللَّهَ فَرِحَ وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ لَخُلُوفُ فَمِ الصَّائِمِ أَطْيَبُ عِنْدَ اللَّهِ مِنْ رِيحِ الْمِسْكِ