Ayesha said, "Do not abandon the night prayer, for the Messenger of Allah ﷺ never abandoned it. Whenever he was ill or weary, he would pray sitting down."
قالت عائشة رضي الله عنها: لا تدع قيام الليل، فإن رسول الله ﷺ كان لا يدعه، وكان إذا مرض أو كسل صلى قاعدا.
Abu Dawud (1307) narrated it from Muhammad bin Bashshar, who said, Abu Dawud (that is, Tayalisi, and the hadith is in his Musnad [1519]) told us, Shubah told us, from Yazid bin Khumayr, who said, I heard Abdullah bin Abu Qays, and he mentioned it.Its isnad is sahih, and Ibn Khuzayma (1137) and Hakim (1/308) also graded it sahih, with Hakim saying, "A sahih hadith according to the criterion of Muslim."