AL ANFAAL — Ayat 43
إِذْ يُرِيكَهُمُ اللّهُ فِي مَنَامِكَ قَلِيلاً وَلَوْ أَرَاكَهُمْ كَثِيراً لَّفَشِلْتُمْ وَلَتَنَازَعْتُمْ فِي الأَمْرِ وَلَـكِنَّ اللّهَ سَلَّمَ إِنَّهُ عَلِيمٌ بِذَاتِ الصُّدُورِ
[Remember, O Muhammad], when Allah showed them to you in your dream as few; and if He had shown them to you as many, you [believers] would have lost courage and would have disputed in the matter [of whether to fight], but Allah saved [you from that]. Indeed, He is Knowing of that within the breasts.
Tafsir Ibnu Katsir
إِذْ يُرِيكَهُمُ اللَّهُ فِى مَنَامِكَ قَلِيلاً وَلَوْ أَرَاكَهُمْ كَثِيراً لَّفَشِلْتُمْ وَلَتَنَـزَعْتُمْ فِى الاٌّمْرِ وَلَـكِنَّ اللَّهَ سَلَّمَ إِنَّهُ عَلِيمٌ بِذَاتِ الصُّدُورِ - وَإِذْ يُرِيكُمُوهُمْ إِذِ الْتَقَيْتُمْ فِى أَعْيُنِكُمْ قَلِيلاً وَيُقَلِّلُكُمْ فِى أَعْيُنِهِمْ لِيَقْضِىَ اللَّهُ أَمْراً كَانَ مَفْعُولاً وَإِلَى اللَّهِ تُرْجَعُ الأُمُورُ
43. (And remember) when Allah showed them to you as few in your dream; if He had shown them to you as many, you would surely have been discouraged, and you would surely have disputed in making a decision. But Allah saved (you). Certainly, He is the All-Knower of that is in the breasts. 44. And (remember) when you met, He showed them to you as few in your eyes and He made you appear as few in their eyes, so that Allah might accomplish a matter already ordained, and to Allah return all matters (for decision).  Mujahid said, â€In a dream, Allah showed the Prophet the enemy as few. The Prophet conveyed this news to his Companions and their resolve strengthened.'' Similar was said by Ibn Ishaq and several others. Allah said,