Mukhtasar Muslim

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: Whoever performs ablution should put water into his nose and then expel it. It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him, said: When any one of you wakes up from sleep, he should expel water from his nose three times, for indeed Satan spends the night at the tip of the nose or in the middle veins of the nose.