Sahih Muslim #2700 · The Book of Fasting

Sahih MuslimThis hadith has been narrated on the authority of Sufyan with the same chain of transmitters in which it is said
Sahih Muslim · Book 13 · The Book of Fasting
Sahih Muslim · كتاب 13 · كتاب الصيام
وَحَدَّثَنِيهِ إِسْحَاقُ بْنُ مَنْصُورٍ، أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ مُوسَى، عَنْ سُفْيَانَ، بِهَذَا الإِسْنَادِ وَقَالَ صَوْمُ شَهْرَيْنِ ‏.‏
Reference : Sahih Muslim 2700In-book reference : Book 13, Hadith 206