‏الإمارة : Hadeeth No:4495 This hadith has been narrated on the authority of Abd al-Rahman b. Shumasa with another chain of transmitters....

‏البر والصلة والآداب‏ : Hadeeth No:6258 Nu'man b. Bashir reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: The similitude of believers in regard to mutual love, affection, fellow-feeling is that of one body; when any limb of it aches, the whole body aches, because of sleeplessness and fever....