Musnad Ahmad 788:225

Marwan ibn Mu'awiyah narrated to us, he said: Thabit ibn 'Amarah narrated to us, from Ghunaym ibn Qays, from al-Ash'ari, he said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Any woman who applies perfume, then passes by a people so that they may smell her scent, is a fornicator."