When God’s Messenger intended to go on an expedition he always pretended to be going somewhere else till that expedition, meaning the one to Tabuk. God’s Messenger undertook it in extreme heat, facing a long journey, desert country and a numerous enemy. He made clear to the Muslims what they were about to do in order that they might get ready the equipment for their expedition, telling them where he was going.
Jabir told that a man said to the Prophet at the battle of Uhud, “Tell me where I shall be if I am killed,” and that when he replied that he would be in paradise he threw away some dates he had in his hand and fought till he was killed.
Narrated Abu Wa’il told that Khalid b. al-Walid wrote to the people of Persia:
In the name of God, the Compassionate, the Merciful. From Khalid b. al-Walid to Rustum and Mih'an among the nobles of Persia. Peace be to those who follow the guidance. To proceed: We summon you to Islam, but if you refuse then pay the jizya in subjection feeling humbled (Cf. Al-Qur'an, 9:29). If you refuse to do that, I have with me people who love being killed in God’s path as the Persians love wine. Peace be to those who follow the guidance.
