Al-Ahzab 33:56
إِنَّ ٱللَّهَ وَمَلَـٰٓئِكَتَهُۥ يُصَلُّونَ عَلَى ٱلنَّبِىِّ ۚ يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ صَلُّوا۟ عَلَيْهِ وَسَلِّمُوا۟ تَسْلِيمًا
Inna Allaha wamala-ikatahu yusalloonaAAala annabiyyi ya ayyuha allatheenaamanoo salloo AAalayhi wasallimoo tasleema
"Indeed, Allāh confers blessing upon the Prophet, and His angels [ask Him to do so]. O you who have believed, ask [Allāh to confer] blessing upon him and ask [Allāh to grant him] peace."
Al-Ahzab 33:56, translation by Sahih International
A short reflection
Allah and His angels send blessings on the Prophet — O believers, send salawat upon him and greetings of peace.