Abu Qatada reported,

When the Messenger of Allah ﷺ was on a journey and stopped to rest at night, he would lie down on his right side. When he stopped to rest just before dawn, he would prop up his forearm and rest his head on his palm.

Muslim 1565

Sahih

حدثنا إسحق بن إبراهيم أخبرنا سليمان بن حرب حدثنا حماد بن سلمة عن حميد عن بكر بن عبد الله عن عبد الله بن رباح

عن أبي قتادة قال

كان رسول الله ﷺ إذا كان في سفر فعرس بليل اضطجع على يمينه وإذا عرس قبيل الصبح نصب ذراعه ووضع رأسه على كفه

مسلم 1565صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Mosques and places of prayer
Chapter
Making up missed prayers and the recommendation to hasten in making them up
Numbering
Darussalam 1565
Muslim 1565