It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), that the Messenger of Allah (peace and blessings be upon him) said: "Fasting is a shield against the Fire of Hell."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Muhammad bin Ka'b except Isma'il bin Ibrahim bin Abi Rabi'ah, and Fudayl bin Sulayman is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب العين / 4232
Hadith Takhrij«أخرجه النسائي فى «المجتبى» برقم: 2233 / 15، والنسائي فى «السنن الكبرى» برقم: 3245، وأحمد فى «مسنده» برقم: 26675، والطبراني فى «الأوسط» برقم: 3199، 4179»