حَدَّثَنَا مُحَمَّدُ بْنُ رَافِعٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، حَدَّثَنَا مَعْمَرٌ، عَنْ هَمَّامِ بْنِ مُنَبِّهٍ، قَالَ هَذَا مَا حَدَّثَنَا أَبُو هُرَيْرَةَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم فَذَكَرَ أَحَادِيثَ مِنْهَا وَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ إِنَّ اللَّهَ قَالَ إِذَا تَلَقَّانِي عَبْدِي بِشِبْرٍ تَلَقَّيْتُهُ بِذِرَاعٍ وَإِذَا تَلَقَّانِي بِذِرَاعٍ تَلَقَّيْتُهُ بِبَاعٍ وَإِذَا تَلَقَّانِي بِبَاعٍ أَتَيْتُهُ بِأَسْرَعَ ‏"‏ ‏.‏

Hammam b. Munabbih reported so many ahadith from Abu Huraira and one out of them is this that Allah's Messenger (PBUH) said that Allah thus stated: When My servant draws close to me by the span of a palm, I draw close to him by the space of a cubit, and when he draws close to Me by the space of a cubit, I draw close to him by the space (covered) by two hands, and when he draws close to Me by the space (covered by) two hands, I go in hurry towards him. Translation Not Available

Book reference: Sahih Muslim Book 48 Hadith 6473
Web reference: Sahih Muslim Book 35 Hadith 2675 c