Musnad Abu Ya'la al-Mawsili 243:86

On the authority of Abu Musa, from the Prophet, may Allah bless him and grant him peace, who said: "The likeness of the righteous companion and the evil companion is only like the carrier of musk and the blower of the bellows. As for the carrier of musk, either he will give you [some], or you will buy from him, or you will find from him a good scent. And the blower of the bellows, either he will burn your clothes, or you will find from him a foul odor."