Abu Huraira reported God’s Messenger as saying:Angels take turns among you by night and by day, and they all assemble at the dawn and the afternoon prayers. Those who spent the night among you then ascend, and their Lord asks them, yet He is best informed about them, “How did you leave My servants?” They reply, “We left them while they were praying, and we came to them while they were praying.” (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الصلاة / 626
Hadith Gradingالألبانی:مُتَّفَقٌ عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (555) و مسلم (210/ 632)»