Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: If a person performs a deed inside a solid rock, which has neither a door nor a window, even then his deed will come out for the people, whatever kind it may be.
Hadith Referenceالفتح الربانی / القسم الخامس: مسائل الترهيب من الكبائر وسائر المعاصي / 9671
Hadith Gradingمحدثین:ضعیف
Hadith Takhrij«اسناده ضعيف، دراج بن سمعان ضعيف في روايته عن ابي الھيثم، أخرجه ابويعلي: 1378، وابن حبان: 5678 ، (انظر مسند أحمد ترقيم الرسالة: 11230/1 ترقیم بيت الأفكار الدولية: 11248»
Brief Explanation
Benefits: … Observation shows that a servant’s righteous deed does not remain hidden; it becomes known to people during the doer’s lifetime, or after his death, when the biographies of pious personalities are recorded and the writers bring all aspects of their lives to light. However, it is possible, by the grace and mercy of Allah Ta’ala, that people may not become aware of his faults.
Daqaq says: Bishr Hafi passed by a gathering of people. When they saw him, they said: “This man stands (in prayer) all night and breaks his fast only once every three days.” Upon hearing this, Bishr Hafi began to weep and said: “I do not even remember a single night in which I stood (in prayer) the entire night, and whenever I fast, I break my fast that very evening. But Allah Ta’ala, out of His grace and mercy, places in people’s hearts a greater impression of a servant’s deeds than the deeds themselves.”