Bayan Al-Hadith › Sahih Muslim › The Book of Fasting
Sahih Muslim 1080cصحيح مسلم 1080c
وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا عُبَيْدُ اللَّهِ، بِهَذَا الإِسْنَادِ وَقَالَ " فَإِنْ غُمَّ عَلَيْكُمْ فَاقْدِرُوا ثَلاَثِينَ " . نَحْوَ حَدِيثِ أَبِي أُسَامَةَ .
This hadith is narrated on the authority of 'Ubaidullah with the same chain of transmitters, and he said: If (the sky) is cloudy for you, then calculate thirty days (for the month of Ramadan).
Grading
Sahih (authentic by the consensus of hadith scholars)
Chain of narrators
محمد بن عبد الله ← عبد الله بن نمير ← عبيد الله بن عمر ← نافع ← عبد الله بن عمر
Muhammad ibn Abdullah → Abdullah ibn Numayr → Ubaydullah ibn Umar → Nafi' → Ibn `Umar