Al A'raf, 21 Ayah
7:21
وَقَاسَمَهُمَآ إِنِّي لَكُمَا لَمِنَ ٱلنَّٰصِحِينَ ٢١
Wa Qāsamahumā 'Innī Lakumā Lamina An-Nāşiĥīna
And he swore [by Allah ] to them, "Indeed, I am to you from among the sincere advisors."