Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:33:56 –

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.  

Indeed God and His angels bless the Prophet, Muhammad (s). O you who believe, invoke blessings on him and invoke peace upon him in a worthy manner, in other words, say: ‘O God, bless our master Muhammad and grant him peace’ (Allāhumma sallī ‘alā sayyidinā Muhammad wa-sallim).
القرآن:٣٣:٥٦ –

إِنَّ اللَّهَ وَمَلَائِكَتَهُ يُصَلُّونَ عَلَى النَّبِيِّ ۚ يَا أَيُّهَا الَّذِينَ آمَنُوا صَلُّوا عَلَيْهِ وَسَلِّمُوا تَسْلِيمًا  

{إن الله وملائكته يصلُّون على النبي} محمد ﷺ {يا أيها الذين آمنوا صلوا عليه وسلموا تسليماً} أي قولوا: اللهم صل على سيدنا محمد وسلم.

See similar narrations below:

Collected by Aḥmad, Ibn Ḥibbān
ahmad:24381 – ʿAbdullāh b. al-Walīd > Sufyān > Usāmah > ʿAbdullāh b. ʿUrwah > ʿUrwah > ʿĀʾishah

[Machine] The Messenger of Allah ﷺ said: "Indeed, Allah and His angels send blessings upon those who join the rows (during prayer)."  

أحمد:٢٤٣٨١ – حَدَّثَنَا عَبْدُ اللهِ بْنُ الْوَلِيدِ حَدَّثَنَا سُفْيَانُ عَنْ أُسَامَةَ عَنْ عَبْدِ اللهِ بْنِ عُرْوَةَ عَنْ عُرْوَةَ عَنْ عَائِشَةَ قَالَتْ

قَالَ رَسُولُ اللهِ ﷺ إِنَّ اللهَ ﷻ وَمَلَائِكَتَهُ عَلَيْهِمُ السَّلَامُ يُصَلُّونَ عَلَى الَّذِينَ يَصِلُونَ الصُّفُوفَ  

ذِكْرُ مَغْفِرَةِ اللَّهِ جَلَّ وَعَلَا، وَاسْتِغْفَارِ الْمَلَائِكَةِ لِلْمُتَسَحِّرِينَ

ibnhibban:3467 – Aḥmad b. al-Ḥasan b. Abū al-Ṣaghīr > Ibrāhīm b. Munqidh > Idrīs b. Yaḥyá > ʿAbdullāh b. ʿAyyāsh b. ʿAbbās > ʿAbdullāh b. Sulaymān al-Ṭawīl > Nāfiʿ > Ibn ʿUmar

The Messenger of Allah ﷺ said: Allah and His angels bless those who are on the right flanks of the rows. (Using translation from Abū Dāʾūd 676)   

ابن حبّان:٣٤٦٧ – أَخْبَرَنَا أَحْمَدُ بْنُ الْحَسَنِ بْنِ أَبِي الصَّغِيرِ حَدَّثَنَا إِبْرَاهِيمُ بْنُ مُنْقِذٍ حَدَّثَنَا إِدْرِيسُ بْنُ يَحْيَى عَنْ عَبْدِ اللَّهِ بْنِ عَيَّاشِ بْنِ عَبَّاسٍ عَنْ عَبْدِ اللَّهِ بْنِ سُلَيْمَانَ الطَّوِيلِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ «إِنَّ اللَّهَ وَمَلَائِكَتَهُ يُصَلُّونَ عَلَى الْمُتَسَحِّرِينَ»