The Book of Fasting (Kitab Al-Sawm)

Muslim :: Book 6 : Hadith 2373

Abdullah b. 'Umar (Allah be pleased with both of them) reported Allah's Messenger (may peace be upon him) as saying: The mouth (of Ramadan) is thus and thus, and thus. i. e. ten, ten and-nine.

Source materials are from the University of Southern California MSA site
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