Hazrat Ibn Umar (may Allah be pleased with them both) narrates that Hazrat Umar (may Allah be pleased with him) wrote a letter to the commanders of the armies that they should not kill women and children. And whoever uses a razor, meaning whoever is mature, kill him.

Hazrat Zaid bin Wahb (may Allah have mercy on him) narrates that we received a letter from Hazrat Umar (may Allah be pleased with him): Do not commit treachery, nor betrayal, and do not kill children, and fear Allah regarding the farmers.

Hazrat Yahya bin Saeed (may Allah have mercy on him) narrates that it was conveyed to me that Hazrat Abu Bakr (may Allah be pleased with him) sent armies towards Syria. He (may Allah be pleased with him) set out and was walking behind Yazid bin Abu Sufyan. He (may Allah be pleased with him) said: Surely, I advise you with ten things: Never kill children, neither children nor women nor very old women, and do not cut down fruit-bearing trees. And never destroy inhabited land. And never slaughter goats or cows except for eating. And never cut down a date-palm tree from the top nor burn it, and do not commit treachery, and do not show cowardice.

Hazrat Laith (may Allah have mercy on him) narrates that Hazrat Mujahid (may Allah have mercy on him) said: Children will not be killed in war, nor women, nor the very elderly. Food will not be burned, nor date-palm trees, and houses will not be destroyed, nor will fruit-bearing trees be cut down.

Hazrat Ash'ath (may Allah have mercy on him) narrates that Hasan Basri (may Allah have mercy on him) considered it disliked to kill a very old person, children, and women in the land of war. And he (may Allah have mercy on him) also considered it disliked that a person should take any of them along with him, and then if carrying them becomes burdensome for him, he should abandon them on the way.

Hazrat Abdul Malik bin Umair (may Allah have mercy on him) narrates that Hazrat Atiyyah Qarazi (may Allah have mercy on him) said: On the day of the Battle of Banu Qurayza, we were presented before the Holy Prophet (peace and blessings of Allah be upon him). Whoever had pubic hair was killed, and whoever did not have pubic hair was let go.

Hazrat Abdur Rahman bin Abu Amrah Ansari (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) passed by a murdered woman. The Messenger of Allah (peace and blessings be upon him) asked: Who killed her? A man said: O Messenger of Allah! I did. I made her sit behind me on my mount, then she tried to attack me, so I killed her. Then the Prophet (peace and blessings be upon him) ordered that the woman be buried.

Hazrat Yahya bin Yahya Ghassani (may Allah have mercy on him) says that I wrote a letter to Hazrat Umar bin Abdul Aziz (may Allah have mercy on him) and asked about this verse: Translation: "And fight in the way of Allah those who fight you, but do not transgress. Indeed, Allah does not like transgressors." He (may Allah be pleased with him) wrote a letter in reply to me and said: Indeed, this verse is about women and children and those among them who do not participate in fighting.

Hazrat Thabit bin Hajjaj Kalabi (may Allah have mercy on him) narrates that Hazrat Abu Bakr (may Allah be pleased with him) stood among the people. He (may Allah be pleased with him) praised and glorified Allah, then said: Beware! That monk who is in his monastery shall not be killed.

Hazrat Yazid bin Hurmuz (may Allah have mercy on him) says that Najdah wrote a letter to Hazrat Ibn Abbas (may Allah be pleased with them both) asking about killing children, and in his letter he wrote that indeed a knowledgeable person who was a companion of Hazrat Musa (peace be upon him) killed a child?! Yazid says that I wrote a letter with my own hand from Hazrat Ibn Abbas (may Allah be pleased with them both) to Najdah: You wrote a letter asking about killing children, and in your letter you said that indeed a knowledgeable person who was a companion of Hazrat Musa (peace be upon him), verily he killed a child?! If you also knew about children what he knew, then you too would have killed him. But you do not know. Verily, the Messenger of Allah (peace and blessings be upon him) forbade killing children. So keep away from them.