Muslim 2700 · Book 13
Sahih Muslim, 2700
The Book of Fasting
Sahih (authentic)by the collection
وَحَدَّثَنِيهِ إِسْحَاقُ بْنُ مَنْصُورٍ، أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ مُوسَى، عَنْ سُفْيَانَ، بِهَذَا الإِسْنَادِ وَقَالَ صَوْمُ شَهْرَيْنِ .
This hadith has been narrated on the authority of Sufyan with the same chain of transmitters in which it is said:" Fasting of two monthsCe hadith a été rapporté par Sufyan avec la même chaîne de transmetteurs, où il est dit : « Deux mois de jeûne. »Grades given by scholars
Sahih collection: its hadiths are held authentic by the compiler.
Source: fawazahmed0/hadith-api (public domain).