Sahih Muslim 13941
In-book no 6664حَدَّثَنَا أَبُو كُرَيْبٍ، مُحَمَّدُ بْنُ الْعَلاَءِ حَدَّثَنَا وَكِيعٌ، عَنْ جَعْفَرِ بْنِ بُرْقَانَ، عَنْ يَزِيدَ، بْنِ الأَصَمِّ عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِنَّ اللَّهَ يَقُولُ أَنَا عِنْدَ ظَنِّ عَبْدِي بِي وَأَنَا مَعَهُ إِذَا دَعَانِي " .
Abu Huraira reported Allah's Messenger (may peace be upon him as saying that Allah thus stated: I live in the thought of My servant as he thinks of Me and with him as he calls Me.