‏الجهاد والسير‏ : Hadeeth No:4300 The Messenger of Allaah (may peace he upon him) has been reported by Anas b. Malik to have said: Show leniency; do not be hard; give solace and do not create aversion....

‏القسامة والمحاربين والقصاص والديات‏ : Hadeeth No:4172 This hadith has been narrated on the authority of Mansur with the same chain of transmitters....