It is narrated from Sayyiduna Ali (may Allah be pleased with him) that he said: "I heard a man seeking forgiveness for his parents although they were both polytheists, so I rebuked him, whereupon he replied: 'Did not Ibrahim (peace be upon him) seek forgiveness for his father?'" Sayyiduna Ali (may Allah be pleased with him) said: "Then I came to the Prophet (peace and blessings be upon him) and mentioned this incident to him (peace and blessings be upon him), and Allah Almighty revealed this blessed verse: 'And Ibrahim's seeking forgiveness for his father was only because of a promise he had made to him.'" In the chain of this report, Yahya (may Allah have mercy on him) narrated it through "Abdullah bin al-Khalil," while Abd al-Rahman (may Allah have mercy on him) narrated it through "Abu al-Khalil."
Hadith Referenceمسند أبي يعلى الموصلي / مسند علي بن أبي طالب رضي الله عنه / 335
Hadith Gradingمحدثین:إسناده حسن
Hadith Takhrij«حکم الحدیث مسند ابی یعلی محققاً تنسیق حسين سليم أسد - مکتبہ شاملہ :قال حسين سليم أسد: إسناده حسن . » «قال سعيد بن محمد السناري: حسن» «أخرجه سنن الترمذي برقم: 3101، وأخرجه سنن النسائي برقم: 2036، وأخرجه مسند أحمد برقم: 1088، وأخرجه المستدرك على الصحيحين برقم: 3342، وأخرجه الأحاديث المختارة برقم: 585، وأخرجه السنن الكبرى للنسائي برقم: 2395، مسند ابویعلیٰ ترقیم الاثری: 330»