( وألف بين قلوبهم ) أي : بين الأوس والخزرج ، كانت بينهم إحن وثارات في الجاهلية ، فصيرهم الله إخوانا بعد أن كانوا أعداء ، ( لو أنفقت ما في الأرض جميعا ما ألفت بين قلوبهم ولكن الله ألف بينهم إنه عزيز حكيم )
He brought the hearts of the believers, with whom He assisted you, together after they were disunited. If you had spent all the wealth on earth to bring their disunited hearts together, you would not have been able to do so. But Allah alone brought them together. He is Mighty in His dominion and nothing can overpower Him. He is Wise in His decree, handling of affairs and sacred laws.