"I heard the Messenger of Allah say: 'Fasting is a shield, so long as you do not damage it."'
Sunan an-Nasa'i Book 22, Hadith 144
← Previous Hadith "Mutarrif entered upon 'Uthman" and he narrated something similar in Mursal from. Abu Hurairah said: "The Messenger of Allah said: 'Fasting is a shield."' (Sahih

Sunan an-Nasa'i Book 22, Hadith 143 Next Hadith → "Fasting is a shield against the Fire. Whoever starts the day of fasting, let him not act in an ignorant manner during that day. If anyone treats him in an ignorant maner, let him not insult him or curse him, rather let him say: "I am fasting.' By the One in whole hand is the soul of Muhammad, the smell that comes from the mouth of a fasting person is better before Allah than the fragrance of musk."

Sunan an-Nasa'i Book 22, Hadith 145