‏الأشربة : Hadeeth No:4922 This hadith has been narrated on the authority of Ishaq b. Suwaid, with a slight variation of wording....

‏الصيام : Hadeeth No:2380 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Observe fast on sighting it (the new moon) and break it on sighting it. But if (due to clouds) the actual position of the month is concealed from you, you should then count thirty (days)....