Sunan an-Nasa'i 2235
سنن النسائي#2235Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ حَاتِمٍ، قَالَ أَنْبَأَنَا حِبَّانُ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ مِسْعَرٍ، عَنِ الْوَلِيدِ بْنِ أَبِي مَالِكٍ، قَالَ حَدَّثَنَا أَصْحَابُنَا، عَنْ أَبِي عُبَيْدَةَ، قَالَ الصِّيَامُ جُنَّةٌ مَا لَمْ يَخْرِقْهَا .
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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Abu GhuddahSahih Isnaad Maqtu
Al-AlbaniSahih Isnaad Maqtu
Zubair Ali ZaiHasan
In-book reference: 22:146