‏الصلاة : Hadeeth No:1260 Abu Huraira reported the Prophet of Allaah (sallAllaahu alayhi wa sallam) as saying: He who finds a rak'ah of the prayer, he in fact finds the prayer....

‏النكاح : Hadeeth No:3374 Abu Sa'id al-Khudri (Allaah be pleased with him) (was asked if he had heard it himself), to which he said: Yes. (I heard) Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: There is no harm if you do not practise it, for it (the birth of the child) is something ordained (by Allaah)....