It is narrated from Sayyiduna Sa’d bin Abi Waqqas (may Allah be pleased with him), he says: On the day of Khaybar, I heard the Messenger of Allah (peace and blessings be upon him) say: I will give this flag to a man who loves Allah and His Messenger, and Allah and His Messenger also love him. All of us raised our necks in the desire to receive the flag. The Prophet (peace and blessings be upon him) said: Call Ali. So he was brought, but his eyes were hurting. The Prophet (peace and blessings be upon him) applied his blessed saliva to his eyes and handed the flag over to him. Allah Almighty granted victory at his hands. And when this verse {نَدْعُ أَبْنَائَنَا وَأَبْنَائَکُمْ} was revealed, the Messenger of Allah (peace and blessings be upon him) called Sayyiduna Ali, Sayyida Fatima, Sayyiduna Hasan, and Sayyiduna Husayn and said: O Allah! These people are my family.