What is meant by the oneness of names and attributes of Allah?
To confirm the names and attributes as Allah described them in His Book and as His Messenger described them in authentic Sunnah.
Evidence from the Noble Qur'an
{There is nothing like unto Him and His the All-Hearer, the All-Seer}, {Soorah ash-Shooraa, verse 11]
Evidence from the authentic Sunnah
((Allaah descends each night to the first heaven)), [Transmitted by Ahmad]