This excerpt is taken from Sheikh Hafiz Mubashir Hussain Lahori's book Signs of the Day of Judgment in the Light of Authentic Hadith.
Sign of the Day of Judgment: A mountain of gold (treasure) will emerge from the Euphrates River
عن أبى هريرة رضى الله عنه قال قال رسول الله صلى الله عليه وسلم : لا تقوم الساعة حتى يحسر الفرات عن جبل من ذهب يقتل الناس عليه فيقتل من كل مائة تسعة وتسعون ويقول كل رجل منهم لعلى أكون أنا الذى أنجو
It is narrated from Hazrat Abu Huraira (RA) that the Messenger of Allah (PBUH) said: The Day of Judgment will not be established until a mountain of gold appears from the River Euphrates, upon which people will fight, and ninety-nine will be killed from every hundred, while every person will participate thinking that perhaps he will be the one to be saved.
Reference: Muslim (2894)
وعن أبى هريرة رضى الله عنه قال قال رسول الله صلى الله عليه وسلم : يوشك الفرات أن يحسر عن كنز من ذهب فمن حضره فلا يأخذ منه شيئا
It is narrated from Hazrat Abu Huraira (RA) that the Messenger of Allah (PBUH) said: It is near that the Euphrates will reveal a treasure of gold. So whoever among you is present there should not take anything from that treasure.
Reference: Bukhari (7119) Muslim (7274) Ahmad (438/2 - 456) Abu Dawood (4313) Ibn Majah (3969) Abdul Razzaq (382/11)
عن أبى بن كعب رضى الله عنه قال سمعت رسول الله صلى الله عليه وسلم يقول : يوشك الفرات أن يحسر عن جبل من ذهب فإذا سمع به الناس ساروا إليه فيقول من عنده : لئن تركنا الناس يأخذون منه ليذهبن به كله قال : فيقتتلون عليه فيقتل من كل مائة تسعة وتسعون
It is narrated from Hazrat Ubayy bin Ka'b (RA) that I heard the Messenger of Allah (PBUH) say: Soon a mountain of gold will appear from the River Euphrates. When people hear about it, they will set out towards it, and those who are near it will say, "If we leave this (gold), people will take it away." He said: Then people will fight to obtain it, and ninety-nine will be killed from every hundred.
Reference: Muslim (2895 - 8272) Ahmad (4/5 - 183) Hilyat al-Awliya (255/1) Musnad Shashi (367/3)
It is narrated from Abu Huraira (RA) that the Messenger of Allah (PBUH) said: Soon there is a possibility of a mountain of gold appearing, for which people will fight, and ninety-nine of them will be killed.
Reference: Ahmad (345/2 - 456 - 546) Hilyat al-Awliya (141/7) Abdul Razzaq (382/11)
Benefits:
➊ The emergence of mountains of gold or treasures of gold from the Euphrates River is a sign of the Day of Judgment.
➋ This sign has not yet appeared.
➌ The appearance of a mountain of gold is not beyond divine power.
➍ There will be a very dangerous war to obtain this treasure of gold, in which ninety-nine out of every hundred will be killed.
➎ Muslims are forbidden from participating in this war.
➏ Muslims are forbidden from obtaining this treasure.
➐ The emergence of the mountain (treasure) of gold is a cause of tribulation and a test from Allah.
➑ The recent "Gulf War" was definitely not the war fought to obtain the treasure of gold, although oil is called black gold.
➓ Many Muslims will certainly disobey the Prophet Muhammad ﷺ and enter the battlefield to obtain the treasure, but they will gain nothing except death.