‏البر والصلة والآداب‏ : Hadeeth No:6261 Nu'man b. Bashir reported that Muslims are like one body of a person; if the eye is sore, the whole body aches, and if the head aches, the whole body aches....

‏الصلاة : Hadeeth No:1170 This hadith is reported by Mansur with the same chain of transmitters, but with these words:" He should aim at correct (prayer) and it is advisable."...