From Imam Sadiq (as) ... donno saheeh or not Shaban would never be of 30 days Ramadhan will never be less than 30 days Shawal will be of 29 days Zeeqad 30 days Zilhajj 29 days Muharram 30 other months are full (30) or of lesser duration (29 days) Note: "you should complete the number" = must fast 30 days in Ramazan ??? The month of Ramazan is that in which the Quran was revealed, a guidance to men and clear proofs of the guidance and the distinction; therefore whoever of you is present in the month, he shall fast therein, and whoever is sick or upon a journey, then (he shall fast) a (like) number of other days; Allah desires ease for you, and He does not desire for you difficulty, and (He desires) that you should complete the number and that you should exalt the greatness of Allah for His having guided you and that you may give thanks. ( سورة البقرة , Al-Baqara, Chapter #2, Verse #185) Anybody tackled dis issue b4?