Surah Al-Isra (17:95)

قُل لَّوْ كَانَ فِى ٱلْأَرْضِ مَلَٰٓئِكَةٌ يَمْشُونَ مُطْمَئِنِّينَ لَنَزَّلْنَا عَلَيْهِم مِّنَ ٱلسَّمَآءِ مَلَكًا رَّسُولًا

Say, “If there were on the earth angels walking, at ease, We would surely have sent down upon them from the heaven an angel as a messenger.”