Abu Abdullah al-Asadi relates: I heard Sayyiduna Anas bin Malik (may Allah be pleased with him) relate: The Prophet (peace and blessings be upon him) said: "The supplication of the oppressed, even if he is a disbeliever, has no barrier before it." The Prophet (peace and blessings be upon him) also said: "Leave what puts you in doubt for what does not put you in doubt."
Imam Ahmad recorded this narration, and I do not know the narrator named Abu Abdullah al-Asadi; the remaining narrators of this narration are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدعية / 17235
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه احمد فى المسند (153/3) ، أخرجه مسند أحمد برقم: 12140»