‏البيوع : Hadeeth No:3820 Salim b. Abdullah reported on the authority of his father that Allaah's Messenger (sallAllaahu alayhi wa sallam) said: Whosover amongst the owners of the house keeps a dog other than one meant for watching the herd or for hunting loses two qirat of his deeds every day....

‏الصيام : Hadeeth No:2546 Abu Huraira (Allaah be pleased with him) reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: Do not single out the night (preceding) Friday among the nights for prayer and do not single out Friday among days for fasting but only when anyone among you is accustomed to fast (on dates) ...