An-Nisa 4:166

Lakini Allahu yashhadu bimaanzala ilayka anzalahu biAAilmihi walmala-ikatuyashhadoona wakafa billahi shaheeda

But Allāh bears witness to that which He has revealed to you. He has sent it down with His knowledge, and the angels bear witness [as well]. And sufficient is Allāh as Witness.

But Allah bears witness that what He has revealed to you, has revealed it with His knowledge. The angels too, bear witness, (though) Allah is sufficient as witness.