Hadith 5749
وَعَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «بُعِثْتُ بِجَوَامِعِ الْكَلِمِ وَنُصِرْتُ بِالرُّعْبِ وبَينا أَنا نائمٌ رأيتُني أُوتيتُ بِمَفَاتِيحِ خَزَائِنِ الْأَرْضِ فَوُضِعَتْ فِي يَدِي» مُتَّفَقٌ عَلَيْهِ.
He reported God's messenger as saying, "I have been commissioned with words which are concise but comprehensive in meaning; I have been helped by terror [in the hearts of enemies]; and while I was asleep, I saw myself being brought the keys of the treasures of the earth which were placed in my hand." (Bukhari and Muslim.)