Muwatta Malik, 308

Yahya related to me from Malik from Ibn Shihab from as-Sa'ib ibn Yazid from al Muttalib ibn Abi Wadaa as-Sahmi that Hafsa, the wife of the Prophet, may Allah bless him and grant him peace, said, "I never saw the Messenger of Allah, may Allah bless him and grant him peace, praying nawafil sitting, until a year before his death, when he began to pray them sitting. He would recite the sura with a measured slowness so that it would seem to be longer than other suras which were actually longer than it

Hafsa, la femme du Prophète (salallahou alayhi wa salam) r (Sur lui la grâce et la paix d'Allah) a dit: «Je n'ai jamais vu l'Envoyé d'Allah (salallahou alayhi wa salam) r (Sur lui la grâce et la paix d'Allah) faire une prière surérogatoire assis qu'un an avant sa mort. 1l faisait ses prières surérogatoires assis et récitait la sourate en psalmodiant de sorte qu'elle apparaissait plus longue qu'elle ne l'était en fait»