Sayyidina Bara (RA) narrated. The Prophet (SAW) sent two armies. He appointed Sayyidina Ali ibn Abu Talib (RA) as commander of one of them and Khalid ibn Walid (RA) as commander over the other. He said, When fighting begins, Ali will be the commander.” So, Ali conquered a fort and took a female slave from it. Khalid (RA) sent with me a letter to the Prophet mentioning this. I came to the Prophet (SAW) and he read the letter and his colour changed and he said, What do you see in a man whom Allah loves and His Messenger loves, and he loves Allah and His Messenger?” I said, “ seek refuge in Allah from the anger of Allah and of His Messenger. indeed, I am only a deliverer of message.” He did not say anything.