And they ask information of you, [O Muhammad], "Is it true?" Say, "Yes, by my Lord. Indeed, it is truth; and you will not cause failure [to Allah]."
The Saheeh International Quran Translation
وَيَسْتَنۢبِـُٔونَكَ أَحَقٌّ هُوَ قُلْ إِى وَرَبِّىٓ إِنَّهُۥ لَحَقٌّ وَمَآ أَنتُم بِمُعْجِزِينَAnd they ask information of you, [O Muhammad], "Is it true?" Say, "Yes, by my Lord. Indeed, it is truth; and you will not cause failure [to Allah]."