Abu Dawud Book 28, Hadith Number 4162.
Chapter : On a woman who uses perfume when she goes out.
Narated By Abu Hurairah : A woman met him and he found the odour of perfume in her. Her clothes were fluttering in the air. He said: O maid-servant of the Almighty, are you coming from the mosque? She replied: Yes. He said: For it did you use perfume? She replied: Yes. He said: I heard my beloved AbulQasim (PBUH) say: The prayer of a woman who uses perfume for this mosque is not accepted until she returns and takes a bath like that of sexual defilement (perfectly).
Abu Dawud said: Al-‘i’sar means dust.