4:91
سَتَجِدُونَ ءَاخَرِينَ يُرِيدُونَ أَن يَأْمَنُوكُمْ وَيَأْمَنُوا۟ قَوْمَهُمْ كُلَّ مَا رُدُّوٓا۟ إِلَى ٱلْفِتْنَةِ أُرْكِسُوا۟ فِيهَا ۚ فَإِن لَّمْ يَعْتَزِلُوكُمْ وَيُلْقُوٓا۟ إِلَيْكُمُ ٱلسَّلَمَ وَيَكُفُّوٓا۟ أَيْدِيَهُمْ فَخُذُوهُمْ وَٱقْتُلُوهُمْ حَيْثُ ثَقِفْتُمُوهُمْ ۚ وَأُو۟لَٰٓئِكُمْ جَعَلْنَا لَكُمْ عَلَيْهِمْ سُلْطَٰنًۭا مُّبِينًۭا
You will find others who wish to obtain security from you and [to] obtain security from their people. Every time they are returned to [the influence of] disbelief, they fall back into it. So if they do not withdraw from you or offer you peace or restrain their hands, then seize them and kill them wherever you overtake them. And those - We have made for you against them a clear authorization.
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
Censuring the Companions for Disagreeing over the Hypocrites who Returned to Al-Madinah Before Uhud
Allah criticizes the believers for disagreeing over the hypocrites. There are conflicting opinions over the reason behind revealing this Ayah. Imam Ahmad recorded that Zayd bin Thabit said that Messenger of Allah ﷺ marched towards Uhud. However, some people who accompanied him went back to Al-Madinah, and the Companions of the Messenger of Allah ﷺ divided into two groups concerning them, one saying they should be killed and the other objecting. Allah sent down,
فَمَا لَكُمْ فِى الْمُنَـفِقِينَ فِئَتَيْنِ
(Then what is the matter with you that you are divided into two parties about the hypocrites) The Messenger of Allah ﷺ said,
«إِنَّهَا طَيْبَةُ، وَإِنَّهَا تَنْفِي الْخَبَثَ، كَمَا يَنْفِي الْكِيرُ خَبَثَ الْحَدِيد»
(She (Al-Madinah) is Taybah, and she expels filth, just as the billow expels rust from iron.) The Two Sahihs also recorded this Hadith. Al-`Awfi reported that Ibn `Abbas said that the Ayah was revealed about some people in Makkah who said they embraced Islam, yet they gave their support to the idolators. One time, theses people went out of Makkah to fulfill some needs and said to each other, "If we meet the Companions of Muhammad, there will be no harm for us from their side." When the believers got news that these people went out of Makkah, some of them said, "Let us march to these cowards and kill them, because they support your enemy against you." However, another group from the believers said, "Glory be to Allah! Do you kill a people who say as you have said, just because they did not perform Hijrah or leave their land Is it allowed to shed their blood and confiscate their money in this case" So they divided to two groups, while the Messenger ﷺ was with them, and did not prohibit either group from reiterating their argument. Thereafter, Allah revealed,