From Sahih Bukhari (Hadith 4182):
Aisha said, "Allah's Messenger (ﷺ) used to test all the believing women who migrated to him, with the following Verse:-- "O Prophet! When the believing Women come to you, to give the pledge of allegiance to you." (60.12) `Urwa's uncle said, "We were informed when Allah ordered His Apostle to return to the pagans what they had given to their wives who lately migrated (to Medina) and we were informed that Abu Basir..." relating the whole narration
Reference: Bukhari 4182