This narration is reported from Sayyiduna Abu Hurayrah (may Allah be pleased with him) or perhaps Sayyiduna Abu Sa'id (may Allah be pleased with him) (this doubt belongs to the narrator al-A'mash); he narrates that the Prophet (peace and blessings be upon him) said: "Every day and night, people are set free from Hell by Allah Almighty, and each one of them has a supplication that is answered."
Ahmad recorded it, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التوبة / 17633
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه احمد فى المسند (7443) ، أخرجه مسند أحمد برقم: 7401»