It is narrated from Sayyiduna Ibn Amr, may Allah be pleased with him, that he heard the Noble Prophet, peace and blessings be upon him, say: "All the hearts of the children of Adam are between two fingers of Allah, like a single heart. He turns them as He wills." Then the Noble Prophet, peace and blessings be upon him, supplicated: "O Allah, Turner of the hearts! Turn our hearts towards Your obedience."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 6569