(43) باب ذِكْرِ الاِخْتِلاَفِ عَلَى مُحَمَّدِ بْنِ أَبِي يَعْقُوبَ فِي حَدِيثِ أَبِي أُمَامَةَ فِي فَضْلِ الصَّائِمِ
It was narrated that Al-Walid bin Abi Malik said:
"Our companions narrated to us that Abu 'Ubaidah said: 'Fasting is a shield, so long as you do not damage it."'
Reference: Sunan an-Nasa'i 2235
In-book reference: Book 22, Hadith 146
English translation: Vol. 3, Book 22, Hadith 2237