Those who remained behind (did not join the Tabuk expedition) were delighted to sit inactive behind Allah’s Messenger, and they hated to make Jihad with their goods and their persons in the cause of Allah. They said to each other “Do not go forth in the heat.” Say to them: “The fire of hell is much more severe in heat.” If only they could understand!
Meaning:-
Tabuk: The Battle of Tabouk (also called the Battle of Tabuk) was a military expedition, which, was initiated by Muhammad in October, AD 630,8 AH
Expedition: Journey, voyage, tour, a journey or voyage undertaken by a group of people with a particular purpose.
Jihad: a struggle or fight against the enemies of Islam.