Surah Al-Ahzaab, Verse 56
إِنَّ ٱللَّهَ وَمَلَٰٓئِكَتَهُۥ يُصَلُّونَ عَلَى ٱلنَّبِىِّ ۚ يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ صَلُّوا۟ عَلَيْهِ وَسَلِّمُوا۟ تَسْلِيمًا
Translation — Sahih International
Indeed, Allah confers blessing upon the Prophet, and His angels [ask Him to do so]. O you who have believed, ask [Allah to confer] blessing upon him and ask [Allah to grant him] peace.
Source
Kur'an-ı Kerim, Ahzâb Suresi 33:56
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/33-suresi-56-ayet