Fasting (Kitab Al-Siyam)

Dawud :: Book 13 : Hadith 2319

Narrated Hudhayfah:

The Prophet (peace_be_upon_him) said: Do not fast (for Ramadan) before the coming of the month until you sight the moon or complete the number (of thirty days); then fast until you sight the moon or complete the number (of thirty days).