Mishkat al-Masabih 9 Supplications كتاب الدعوات 39

وَعَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: ” يَقُولُ اللَّهُ تَعَالَى: أَنَا عِنْدَ ظَنِّ عَبْدِي بِي وَأَنَا مَعَهُ إِذَا ذَكَرَنِي فَإِنْ ذَكَرَنِي فِي نَفْسِهِ ذَكَرْتُهُ فِي نَفْسِي وَإِنْ ذَكَرَنِي فِي مَلَأٍ ذَكَرْتُهُ فِي مَلَأٍ خير مِنْهُم

Abu Huraira reported God’s messenger as stating that God says, “I am present when my servant thinks of me, and I am with him when he remembers me. If he remembers me inwardly I shall remember him inwardly, and if he remembers me among people I shall remember him among people who are better than they.” (Bukhari and Muslim.)