Hadith on Salat: An angel announces at the time of every prayer

Anas reported: The Messenger of Allah, peace and blessings be upon him, said, “Verily, Allah has an angel announce at the time of every prayer: O children of Adam, stand for your fires that you have put forward by your sins and extinguish them with prayer.

Source: al-Mu’jam al-Awsaṭ 9686

Grade: Hasan li ghayrihi (fair due to external evidence) according to Al-Albani

عَنْ أَنَسٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنَّ لِلَّهِ مَلَكًا يُنَادِي عِنْدَ كُلِّ صَلاةٍ يَا بَنِي آدَمَ قُومُوا إِلَى نِيرَانِكُمُ الَّتِي أَوْقَدْتُمُوهَا عَلَى أَنْفُسِكُمْ فَأَطْفِئُوهَا بِالصَّلاةِ

9686 المعجم الأوسط للطبراني

358 المحدث الألباني خلاصة حكم المحدث حسن لغيره في صحيح الترغيب