It was narrated from Ibn ‘Umar that:
The Prophet (peace be upon him) saw a boy, part of whose head had been shaven and part had been left. He forbade that and said: “Shave all of it, or leave all of it.”
Sunan an-Nasa’I, Book 48, Hadith 9

It was narrated from Abu Hurairah that: The Messenger of Allah (peace be upon him) said: “The Muslim is the one from whose tongue and hand the people are safe, and the believer is the one from whom the people’s lives and wealth are safe.” Sunan an-Nasa’I, Book 47...

Amr bin Shu’aib narrated from his grandfather, from his father, that: The Messenger of Allah said: “There is no vow for the son of Adam over what he has no control, and there is no emancipating he can do for one whom he does not own, and there is no divorce for him regarding...

Narrated Abu Musa Al-Ash`ari:
The Prophet (peace be upon him) heard someone praising another and exaggerating in his praise. The Prophet (peace be upon him) said, “You have ruined or cut the man’s back (by praising him so much).
Sahih al-Bukhari, Vol.3, Book 52, Hadith 27

Narrated An-Nu`man bin Bashir: The Prophet (peace be upon him) said “Both legal and illegal things are obvious, and in between them are (suspicious) doubtful matters. So whoever forsakes those doubtful things lest he may commit a sin, will definitely avoid what is clearly illegal;...