Musannaf Ibn Abi Shaybah

Narrated from Hazrat Abu Huraira that a man asked, "O Messenger of Allah (peace be upon him), when will the Hour (Day of Judgment) come?" The Prophet (peace be upon him) replied, "The one who is being asked does not know more than the one who is asking. But I will tell you its signs: when a slave woman gives birth to her master, this is among the signs of the Hour; and when the barefoot and naked people become the leaders, this is among the signs of the Hour; and when the shepherds of sheep compete in constructing tall buildings, this too is among the signs of the Hour. The knowledge of the Hour is among those five things which none knows except Allah {إنَّ اللَّہَ عِنْدَہُ عِلْمُ السَّاعَۃِ وَیُنَزِّلُ الْغَیْثَ وَیَعْلَمُ مَا فِی الأَرْحَامِ وَمَا تَدْرِی نَفْسٌ مَاذَا تَکْسِبُ غَدًا وَمَا تَدْرِی نَفْسٌ بِأَیِّ أَرْضٍ تَمُوتُ إِنَّ اللَّہَ عَلِیمٌ خَبِیرٌ}. Surely, with Allah is the knowledge of the Hour, and He sends down the rain, and He knows what is in the wombs, and no soul knows what it will earn tomorrow, and no soul knows in which land it will die. Surely, Allah is All-Knowing, All-Aware."