عَنِ ابْنِ عَبَّاسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «نُصِرْتُ بِالصَّبَا وَأُهْلِكَتْ عَاد بالدبور»

Ibn ‘Umar reported God’s Messenger as saying, “The keys of the unseen are five.” He then recited, “God has knowledge of the Hour, and He sends down the rain . . .” (Al-Qur’an; 31:34). Bukhari transmitted it.