"It was narrated that Abu Hurayrah (may Allaah be pleased with him) said: The Messenger of Allaah (SAW) said: “A man who weeps for fear of Allaah will not enter Hell until the milk goes back into the udder (i.e: impossible) … [Narrated by al-Tirmidhi, 1633; al-Nasaai, 3108; classed as saheeh by al-Albaani]"