‏النكاح : Hadeeth No:3245 This hadith has been narrated on the authority of Isma'il with the same chain of transmitters (and the words are):" We were young, so we said: Allaah's Messenger, should we not have ourselves castrated? But he (the narrator) did not say; We were on an expedition."...

‏البر والصلة والآداب‏ : Hadeeth No:6354 'A'isha reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Gabriel impressed upon me (kind treatment) towards the neighbour (so much) that I thought as if he would confer upon him the (right) of inheritance....