الزهد والرقائق : Hadeeth No:7072
It is reported on the authority of Amir b. Sa'd that Sa'd b. Abi Waqqas was in the fold of his camels that his son 'Umar came to him. When Sa'd saw him he said: I seek refuge with Allaah from the mischief of this rider. And as he got down he said to him: You are busy with your camels and your sheep ...
الصيام : Hadeeth No:2369
'Abdullah b. Umar (Allaah be pleased with both of them) reported Allaah's Measenger (sallAllaahu alayhi wa sallam) as saying: When you see the new moon, observe fast, and when you see it (again) then break it, and if the sky is cloudy for you, then calculate it....