The Messenger of Allah ﷺ narrated from his Lord that he said, "Your Lord
says, 'When my servant comes toward me a hand-span, I come toward him an arm's length. When he comes toward me an arm's length, I come toward him a fathom. When he comes toward me walking, I come toward him hurrying.'"
حدثنا عفان حدثنا إبراهيم أبو إسماعيل القناد حدثنا قتادة
عن رسول الله ﷺ يرويه عن ربه عز وجل قال يقول ربكم عز وجل إذا تلقاني عبدي شبرا تلقيته ذراعا وإذا تلقاني ذراعا تلقيته باعا وإذا تلقاني يمشي تلقيته أهرول
Its isnad is sahih. Abu Ismail Qannad is Ibrahim bin Abdul-Malik. Something has been said about him regarding his memory. The hadith has come before at greater length, so see it in Muslim, 4/2061, no. 2675, in the book of Remembrance, on the encouragement to remember Allah.