It is narrated from Abdur Rahman bin Abi Laila, he says: My father used to sit and talk at night with Sayyiduna Ali (may Allah be pleased with him). Sayyiduna Ali (may Allah be pleased with him) used to wear warm clothes in winter and cool clothes in summer. Someone said to my father, "Why don't you ask him the reason for this?" So he asked him about it, and he replied: "On the day of Khaybar, my eyes were hurting. The Messenger of Allah (peace and blessings be upon him) called me, applied his blessed saliva to my eyes, and prayed for me, saying: 'O Allah! Remove from him the feeling of heat and cold.' Since that day, I have not felt heat nor cold. Also, on that day, the Prophet (peace and blessings be upon him) said: 'I will give this flag to a man who loves Allah and His Messenger, and Allah and His Messenger love him, and he does not flee from the battlefield.' At the time of giving the flag, many companions of the Prophet (peace and blessings be upon him) raised their necks in hope of receiving it, and at that time, he granted me that flag."