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.
God’s Messenger sent us in a detachment and said, “When you see a mosque or hear a mu’adhdhin (The one who makes the call to prayer) do not kill anyone.”
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 Qatada quoted an-Nu‘man b. Muqarrin as saying:
I went on an expedition with God's Messenger, and when dawn came he waited till the sun rose and when it rose he fought. Then when midday came he stopped till the sun passed the meridian and when it had done so he fought till the afternoon, when he stopped till he prayed the afternoon prayer, and then fought. Qatada told that it used to be said that the winds of victory blew at that time and the believers made supplication for their armies during their prayer.
