Shu'bah (may Allah have mercy on him) narrates from Qatadah (may Allah have mercy on him), and in it these words are additional: "When he did a deed, he would keep it up constantly." Then she said: "And when he slept through the night or fell ill, he would pray twelve rak'ahs during the day."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4563