Hazrat Aisha (may Allah be pleased with her) narrated that the Messenger of Allah (peace and blessings be upon him) recited this verse: "He it is Who has sent down to you the Book; in it are clear and firm verses—they are the foundation of the Book—and others are ambiguous. So as for those in whose hearts is deviation, they follow that which is ambiguous from it, seeking discord and seeking its interpretation. But no one knows its true interpretation except Allah. And those firmly grounded in knowledge say: 'We believe in it; all is from our Lord.' And none take heed except those of understanding." Hazrat Aisha (may Allah be pleased with her) said that the Prophet (peace and blessings be upon him) said: When you see those who pursue the ambiguous verses, then know that they are those whom Allah has mentioned (in the above Ayah), so beware of them.

Hazrat Jundub bin Abdullah (may Allah be pleased with him) narrated that the Holy Prophet (peace and blessings be upon him) said: Recite this Qur'an as long as your hearts are united or inclined towards it, but when you begin to differ and dispute, then stand up (stop reciting).

Narrated Aisha (may Allah be pleased with her): The Prophet (peace and blessings of Allah be upon him) said: The most disliked person in the sight of Allah is the one who is most quarrelsome.

Hazrat Abu Sa'id Khudri (may Allah be pleased with him) narrated that the Holy Prophet (peace and blessings of Allah be upon him) said: You will surely follow the ways of those who came before you, inch by inch and cubit by cubit, so much so that if they entered the hole of a lizard, you would follow them into it as well. We asked, "O Messenger of Allah! Do you mean the Jews and the Christians?" He said, "Who else?"

Hazrat Anas (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Among the signs of the Hour is that (religious) knowledge will be taken away and ignorance will become widespread. And wine will be drunk openly and adultery will become prevalent.

Hazrat Abu Musa (may Allah be pleased with him) narrated that the Prophet Muhammad (peace and blessings be upon him) said: On the Day of Resurrection, there will first be such days in which ignorance will descend and knowledge will be taken away, and "harj" will increase, and "harj" means killing.

Hazrat Abu Huraira (may Allah be pleased with him) narrated that the Noble Prophet (peace and blessings be upon him) said: Time will draw near, deeds will decrease, greed will be cast into the hearts, tribulations will become apparent, and there will be an abundance of "harj." The people asked: O Messenger of Allah! What is this "harj"? The Prophet (peace and blessings be upon him) replied: Killing, killing!

Abdullah bin Amr bin al-As (may Allah be pleased with him) narrated that I heard the Messenger of Allah (peace and blessings be upon him) say: "Allah will not take away knowledge by snatching it from the servants, but He will take away knowledge by causing the scholars to die. When no scholar remains, people will take ignorant ones as leaders; they will be asked questions and will give answers without knowledge. Thus, they will go astray themselves and will lead others astray as well."