One of the ninety-nine names of Allah (God)
Say: “Oh people of the Scripture! Why do you reject the ayat (signs) of Allah, while Allah is Witness to what you do?”
-Family of Imran (Ale-Imran) Qur’an 3:98
Whatever of good reaches you is from Allah, but whatever of evil befalls you, it is from yourself. And We have sent you (Muhammad, may peace and blessings be upon him) as a messenger to mankind and Allah is Sufficient as a Witness.
-The Women (An-Nisa) Qur’an 4:79
Say: “What thing is the most great in witness?” Say: “Allah, the Most Great is Witness between me and you.”