Whatever good, (O man!) happens to thee, is from Allah; But whatever evil happens to thee, is from thy (own) soul. And we have sent thee as a Messenger to (instruct) mankind. And enough is Allah for a witness.[Qur'an 4:79]
Narrated Al-Bara bin Azib(RA): Allah's Apostle(PBUH) ordered us to do seven things and forbade us to do seven other things. He forbade us to wear gold rings, silk, Dibaj, Istabriq, Qissy, and Maithara; and ordered us to accompany funeral processions, visit the sick and greet everybody.