سورة Al-An'am ( The Cattle ) - الآية 19

Say, ‘What thing is greatest as witness?’ Say, ‘Allah! [He is] witness between me and you, and this Quran has been revealed to me that I may warn thereby you and whomever it may reach.’ ‘Do you indeed bear witness that there are other gods besides Allah?’ Say, ‘I do not bear witness [to any such thing].’ Say, ‘Indeed He is the One God, and I indeed disown what you associate [with Him].’