when o dear prophet allah used to show the disbelievers in your dream as only a few* and o muslims had he shown them to you as many you would have certainly lost courage and disputed over the affair but allah rescued indeed he knows what lies within the hearts. 
إذ يريكهم الله في منامك قليلا ولو أراكهم كثيرا لفشلتم ولتنازعتم في الأمر ولكن الله سلم إنه عليم بذات الصدور