Surah Al-Hadid, ayah 8

57:8

وَمَا لَكُمۡ لَا تُؤۡمِنُونَ بِٱللَّهِ وَٱلرَّسُولُ يَدۡعُوكُمۡ لِتُؤۡمِنُواْ بِرَبِّكُمۡ وَقَدۡ أَخَذَ مِيثَٰقَكُمۡ إِن كُنتُم مُّؤۡمِنِينَ ٨

Wamā lakum lā tu'minūna billāhi war-rasūlu yad'ūkum litu'minū birabbikum waqad akhadha mīthāqakum in kuntum mu'minīn

And why do you not believe in Allāh while the Messenger invites you to believe in your Lord and He has taken your covenant, if you should [truly] be believers?