Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: Whoever does not fast one day of Ramadan without any concession will meet Allah Almighty with it, even if he afterwards fasts his whole lifetime; then, if Allah Almighty wills, He will forgive him, and if He wills, He will punish him.
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصيام / 4979
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (9574 ,9575)»