Book 48, Number 48.4.8:

Yahya related to me from Malik from Yahya ibn Said from Ibn Shihab that the Messenger of Allah, may Allah bless him and grant him peace, stood up in the night and looked at the horizon of the sky. He said, "What treasures has the night opened? What trials have occurred? How many are dressed in this world and will be naked on the Day of Rising. Warn the women in their rooms."