Musannaf Ibn Abi Shaybah 31157 — Those who used to say: O Turner

Sayyiduna Anas (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) would frequently supplicate: "O Turner of hearts! Keep my heart firm upon Your religion." The Companions said: "O Messenger of Allah (peace and blessings be upon him)! We have believed in you and in the religion you have brought. Do you still fear for us?" He (peace and blessings be upon him) said: "Yes! Indeed, the hearts of people are between two fingers of Allah; Allah keeps turning them."