Sahih al-Bukhari Book 86, Hadith 36
The Prophet (ﷺ) said, "Whoever guarantees me (the chastity of) what is between his legs (i.e. his private
parts), and what is between his jaws (i.e., his tongue), I guarantee him Paradise."
The Prophet (ﷺ) said, "Seven (people) will be shaded by Allah by His Shade on the Day of Resurrection when there will be no shade except His Shade. (They will be), a just ruler, a young man who has been brought up in the worship of Allah, a man who remembers Allah in seclusion and his eyes are then flooded with tears, a man whose heart is attached to mosques (offers his compulsory congregational prayers in the mosque), two men who love each other for Allah's Sake, a man who is called by a charming lady of noble birth to commit illegal sexual intercourse with her, and he says, 'I am afraid of Allah,' and (finally), a man who gives in charity so secretly that his left hand does not know what his right hand has given."
I will narrate to you a narration which nobody will narrate to you after me. I heard that from the Prophet. I heard the Prophet (ﷺ) saying, "The Hour will not be established" or said: "From among the portents of the Hour is that the religious knowledge will betaken away (by the death of religious Scholars) and general ignorance (of religion) will appear; and the drinking of alcoholic drinks will be very common, and (open) illegal sexual intercourse will prevail, and men will decrease in number while women will increase so much so that, for fifty women there will only be one man to look after them."