Musnad Ahmad 1153:303

Ibn Numayr narrated to us, Ubayd Allah narrated to us, from Muhammad ibn Yahya, from Abd al-Rahman al-A’raj, from Aisha, who said: I was startled one night and I missed the Messenger of Allah, may Allah bless him and grant him peace. I stretched out my hand, and it fell upon the feet of the Messenger of Allah, may Allah bless him and grant him peace, while they were upright and he was prostrating. He was saying: "I seek refuge in Your pleasure from Your anger, and I seek refuge in Your pardon from Your punishment, and I seek refuge in You from You. I cannot enumerate Your praise; You are as You have praised Yourself."