(And among those around you of the wandering Arabs there are hypocrites, and among the townspeople of Medina (there are some who) persist in hypocrisy…) [9:101]. Al-Kalbi said: “This verse was revealed about the tribes of Juhaynah, Muzaynah, Ashja‘, Aslam and Ghifar. As for the townspeople of al-Medina mentioned in the verse, this refers to ‘Abd Allah ibn Ubayy, Jadd ibn Qays, Mu‘attib ibn Qushayr, al-Julas ibn Suwayd and Abu ‘Amir al-Rahib”.
Asbab Al-Nuzul by Al-Wahidi , trans. Mokrane Guezzou