‏الصيام : Hadeeth No:2363 Ibn Umar (Allaah be pleased with both of them) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying in connection with Ramadan: Do not fast till you see the new moon, and do not break fast till you see it; but if the weather is cloudy calculate about it....

‏فضائل الصحابة‏ : Hadeeth No:6054 This hadith has been narrated on the authority of Ismail with different chains of transmitters and in the badith transmitted on the authority of Marwan (the words are):" A person giving the glad tidings on behalf of Jarir came or Abu Husain b. Rabi'a came in order to give glad tidings to Allaah's Pr...