Musnad Ahmad 32:550

Hujayn narrated to us, Abd al-Aziz ibn Abd Allah ibn Abi Salamah narrated to us, from Humayd al-Tawil, from Anas ibn Malik, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "By the One in Whose hand is my soul, if a woman from the women of the people of Paradise were to look out upon the people of the earth, she would illuminate what is between them, and she would fill what is between them with her scent. And her head-covering (naseef) upon her head is better than the world and what is in it."