and he (ṣallá Allāhu ʿalayhi wa-sallam) was asked about prayer on the ship, and he said: (al-Bazzār and al-Dāraquṭnī, and al-Ḥākim authenticated it) "Pray standing in it unless you fear drowning" (Abū Dāwūd and al-Ḥākim, and it was authenticated by him and al-Dhahabī). When he (ṣallá Allāhu ʿalayhi wa-sallam) became old and aged, he set up a pillar in his prayer place to lean on for standing and sitting during the night prayer (Muslim and Abū Dāwūd). and (he (ṣallá Allāhu ʿalayhi wa-sallam) would sometimes pray a long night standing and a long night sitting, and when he recited standing, he bowed standing, and when he recited sitting, he bowed sitting) (al-Bukhārī and Muslim). and (sometimes he would pray sitting, and he would recite while sitting, and when there remained from his recitation..