Revealed in Madīnah between the Treaty of Hudaybiyah and the conquest of Makkah, this sūrah has 13 verses. It derives its name from the tenth verse, which commands that women who have declared their conversion to Islam and emigrated to Madīnah should be tested as to whether they are true. The sūrah also deals with what the Muslims’ relations with their disbelieving enemies should be.
O you who believe! Do not take My enemies and your enemies for friends, offering them love and affection, while they have disbelieved in the truth that has come to you and driven the Messenger and yourselves away (from your homes) only because you believe in God, your Lord (Who has created you and sustains you). If you (now) have set forth (from your homes) to strive in My way and to seek My approval and good pleasure, (then do not take them for friends). You reveal to them your secret in secrecy out of your love and friendship, but I am better aware (than yourselves) of what you do in secret as well as of what you disclose. Whoever does so among you has surely strayed from the right way.1