Sayyidah Aishah Siddiqah (may Allah be pleased with her) transmits this saying of the Prophet (peace and blessings be upon him): "Whoever memorises the seven long surahs, that is good."
Ahmad and al-Bazzar recorded it; the narrators of Ahmad are the narrators of the Sahih except Habib bin Hind al-Aslami, whose case is different, and he is thiqah (trustworthy).
He also recorded it with another chain whose narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التفسير / 11648
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه احمد فى المسند (7326) ، أخرجه مسند أحمد برقم: 23922، 24010، وأخرجه المستدرك على الصحيحين برقم: 2114، وأخرجه سنن سعيد بن منصور برقم: 69»