Umm Salamah al-Azdiyyah (may Allah have mercy on her) said: I saw Sayyidah Aishah (may Allah be pleased with her) reciting from the mushaf; whenever she passed by a verse of prostration, she would stop and prostrate.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3777