(11) باب ذِكْرِ الاِخْتِلاَفِ عَلَى عُبَيْدِ اللَّهِ بْنِ عُمَرَ فِي هَذَا الْحَدِيثِ
It was narrated form Ibn 'Umar that the Prophet said:
"D not fast until you see it , and do not stop fasting until you see it, and if it is obscured from you (too cloudy), then work it out."
Reference: Sunan an-Nasa'i 2122
In-book reference: Book 22, Hadith 33
English translation: Vol. 3, Book 22, Hadith 2124