Mujahid (may Allah have mercy on him) says: "Any city that is conquered by force, if its people accept Islam before the distribution of the spoils of war, then they are free and their wealth belongs to the Muslims."

Sayyiduna Amr bin al-As (may Allah be pleased with him) entered Egypt with three thousand five hundred people. When Umar bin Khattab (may Allah be pleased with him) received this news, he sensed danger and sent Sayyiduna Zubair bin al-Awwam (may Allah be pleased with him) with twelve thousand people, who, after joining Amr bin al-As (may Allah be pleased with him), participated in the conquest of Egypt. Sayyiduna Zubair (may Allah be pleased with him) had his share allotted in Fustat.

Sayyiduna Ibrahim (may Allah have mercy on him) says: "If a person from the people of Sawad (Iraq) accepts Islam and remains on his land, then kharaj (land tax) is taken from him, and if he leaves the land, then the kharaj ends for him."

During the time of Sayyiduna Ali bin Abi Talib (may Allah be pleased with him), a villager accepted Islam. Sayyiduna Ali (may Allah be pleased with him) said: "If you remain on your land, the jizya will be lifted from you and kharaj will be taken from the land, and if you leave the land, then we are more entitled to it."

It is stated in the letter of Hazrat Mu'adh (may Allah be pleased with him): "Any people who enslave someone while they were previously free and weak neighbors—so whoever is confined in someone's house and brought into Islam in this way, he is a slave; and whoever has continued to pay tribute while being free, he is free. And any slave who comes running towards Muslim women in Islam becomes free."

Hazrat Umar bin Abdul Aziz (may Allah have mercy on him) wrote: "Whoever among the people of the land accepts Islam, his family and wealth are protected for him, however, his land and his dwelling will be counted among the spoils (fay’) of the Muslims."

When Sayyiduna Umar bin Khattab (may Allah be pleased with him) received the news that some people had come from Egypt to Balahib under a treaty, he wrote to Sayyiduna Amr bin al-As (may Allah be pleased with him) instructing him to give them the choice of either entering Islam or returning to their villages.

Sayyiduna Umar bin Khattab (may Allah be pleased with him) said: "By Allah! If any one of you points towards a polytheist with his finger, and upon seeing that gesture, the polytheist comes down and then he kills him, I will kill him in retribution for that murder."

Sayyiduna Umar bin Khattab (may Allah be pleased with him) said: "If a Muslim points towards the sky with his finger and a polytheist comes down and swears an oath saying, 'I will not kill you,' then he is granted protection, because he has come down upon the covenant and pledge of Allah."

Sayyiduna Abu Wa’il Shaqiq bin Salamah (may Allah have mercy on him) says: We received a letter from Sayyiduna Umar bin Khattab (may Allah be pleased with him) in Khaniqin regarding the sighting of the Ramadan moon. Some had fasted and some had broken their fast, but no one objected to the other. The letter stated:“When you see the moon during the day, do not break your fast until two witnesses testify that they saw the moon the previous day. And when, during a siege, it is said to the people of a fortress to come down according to Allah’s command, then let them come down according to your decision, because you do not know what Allah’s command is regarding them. And if you say «لا بأس» or «لا تدخل» or «مطرس» , then this is a guarantee of safety, because Allah knows the tongues.”