Volume 7, Book 67, Number 442:
Narrated Abu Musa:
The Prophet said, ‘The example of a good pious companion and an evil one is that of a person car –
rying musk and another blowing a pair of bellows. The one who is carrying musk will either give
you some perfume as a present, or you will buy some from him, or you will get a good smell from
him, but the one who is blowing a pair of bellows will either burn your clothes or you will get a bad
smell from him.”