It was narrated from Mujahid, Sa’eed bin Jubair, ‘Ata’ bin Abi Rabah and Tawus that Ibn ‘Abbas told them that the Messenger of Allah (ﷺ) used to combine the Maghrib and ‘Isha’ when traveling, although there was nothing to make him hurry and no enemy pursuing him, and he was not afraid of anything

English translation · Sunan Ibn Majah