وَعَنْ أَبِي ذَرٍّ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: " لَا يَزَالُ اللَّهُ عَزَّ وَجَلَّ مُقْبِلًا عَلَى الْعَبْدِ وَهُوَ فِي صَلَاتِهِ مَا لَمْ يَلْتَفِتْ فَإِذَا الْتَفَتَ انْصَرَفَ عَنْهُ. رَوَاهُ أَحْمَدُ وَأَبُو دَاوُدَ وَالنَّسَائِيُّ وَالدَّارِمِيُّ
On the authority of Abu Dharr, he said: The Messenger of God, may God bless him and grant him peace, said: “God Almighty continues to approach the servant while he is in prayer as long as he does not turn around.” If he turns away, he turns away from it. It was narrated by Ahmad, Abu Dawud, Al-Nasa’i, and Al-Darimi.
— Mishkat al-Masabih #995 (Sahih)