Anas reported God’s messenger as saying, “The search for knowledge is an obligation laid on every Muslim, but he who commits it to those who are unworthy of it is like one who puts necklaces of jewels, pearls and gold on swine.” Ibn Majah transmitted it. Baihaqi transmitted it in Shu'ab al-iman up to the word “Muslim”, saying that this is a tradition whose text is well known but whose isnad is weak, it being transmitted by many ways all of which are weak.

"Seeking knowledge is a duty upon every Muslim, and he who imparts knowledge to those who do not deserve it, is like one who puts a necklace of jewels, pearls and gold around the neck of swines."

Note:
"Seeking knowledge is a duty upon every Muslim" is authentic through many sources, but the remaining text is not acceptable.

‘Abdallah b. Mas'ud reported God's Messenger as saying, “Trying to earn a lawful livelihood is an obligatory duty in addition to the duties which are obligatory.” Baihaqi transmitted it in Shu’ab al-iman.

‘Aisha said she heard God’s messenger say that God revealed to him, “ If anyone follows a path in search of knowledge, I shall make easy for him the road to paradise; and if I deprive anyone of his eyes, I shall guarantee paradise to him in return for them. Superiority in knowledge is better than superiority in worship, and the basis of the religion is abstinence.” Baihaqi transmitted it in Shu'ab al-iman.

Anas reported God’s messenger as saying, “He who goes out in search of knowledge is in God’s path till he returns.” Tirmidhi and Darimi transmitted it.

The Messenger of Allah (PBUH) said, "He who goes forth in search of knowledge is considered as struggling in the Cause of Allah until he returns."

[At- Tirmidhi].

Sakhbara al-Azdi reported God’s messenger as saying, “If anyone seeks knowledge, it will be an atonement for past sins.” Tirmidhi and Darimi transmitted it, Tirmidhi saying that this is a tradition whose isnad is weak, and that Abu Dawud the transmitter is declared to be weak.

Wathila b. al-Asqa‘ reported God’s messenger as saying, “He who seeks knowledge and attains it will have a double portion of reward, but if he does not attain it he will have a single portion of reward." Darimi transmitted it.

narrated that the Prophet (SAW) said: "Whoever seeks knowledge, he is atoning for what has passed (of sins while doing so)."

Yahya related to me from Malik that he heard that Luqman al-Hakim made his will and counselled his son, saying, "My son! Sit with the learned men and keep close to them. Allah gives life to the hearts with the light of wisdom as Allah gives life to the dead earth with the abundant rain of the sky."

Ka'b b. Malik reported God’s messenger as saying, “If anyone seeks knowledge to use it in vying with the learned, or disputing with the foolish, or to attract men’s attention to himself, God will bring him into hell.” Tirmidhi transmitted it, and Ibn Majah transmitted it from Ibn ‘Umar.

"I went to Safwan bin 'Assal Al-Muradi and he said: 'What brought you here?' I said: 'I am seeking knowledge.' He said: 'I heard the Messenger of Allah say: "There is no one who goes out of his house in order to seek knowledge, but the angels lower their wings in approval of his action.'"

that the Messenger of Allah (SAW) said: "Whoever goes out seeking knowledge, then he is in Allah's cause until he returns."

The Messenger of Allah said: "Whoever seeks knowledge in order to argue with the foolish, or to show off before the scholars, or to attract people's attention, will be in Hell."

The Prophet said: "Whoever seeks knowledge for a reason other than the sake of Allah, or intends it for a purpose other than for the sake of Allah, let him take his place in hell."

from his father that he heard the Messenger of Allah (SAW) saying: "Whoever seeks knowledge to contend with the scholars, or to use it to argue with the fools, and to have people's faces turn towards him, then he shall be admitted to the Fire."

Ibn Mas'ud reported that God's messenger said to him, "Acquire knowledge and teach it to the people, learn the obligatory duties and teach them to the people, learn the Qur’an and teach it to the people; for I am a man who will be taken away, knowledge will be taken away, dissensions will appear, so that two men will disagree about an obligatory duty and find no one to decide between them.” Darimi and Daraqutni transmitted it.

a precise verse, or an established sunna, or a firm obligatory duty. Anything else is an extra.” Abu Dawud and Ibn Majah transmitted it.

The Prophet (saws) said: Knowledge has three categories; anything else is extra; a precise verse, or an established sunnah (practice), or a firm obligatory duty.

"One day, the Messenger of Allah(s.a.w) led us in Salat Al-Asr while it was still daytime. Then he stood to give us a Khutbah. He did not leave anything that would happen until the Hour of Judgement except that he informed us about it. Whoever remembered it remembered it, and whoever forgot it forgot it. Among what he said was: 'Indeed the world is green and sweet, and indeed Allah has left you to remain to see how you behave. So beware of the world, and beware of the women.' And among what he said was: 'The awe(status) of people should not prevent a man from saying the truth when he knows it."'He(one of the narrators) said: "Abu Sa'eed wept, then he said: 'By Allah! We have seen things and we feared."' "And among what he said in it, was : 'Indeed, for every treacherous person there shall be a banner erected on The Day Of Resurrection in proportion to his treachery. And there is no treachery greater than the treachery of a leader to the masses' whose banner shall be positioned at his buttocks.' And among what we remember from that day is: 'Behold! Indeed the children of Adam were created in various classes. Among them is he who was born a believer, lives as a believer, and dies a believer. Among them, is he who was born a disbeliever, lives as a disbeliever, and dies a disbeliever. Among them, is he who was born a believer, lives as a believer, and dies a disbeliever. Among them, is he who was born a disbeliever, lives as a disbeliever, and dies a believer. Behold! Among them is the slow to get angry, the quick to calm. Among them is the quick anger and the quick to calm, so this is with that. Behold! Among them is the quick get angry and the slow to calm, and indeed the best of them is the slow to get angry and the quick to calm, and the worst of them is the quick get angry and the slow to calm. Behold! Among them is he who pays back well and collects well. Among them is he who is bad with paying back and good when collecting. Among them is he who pays back well and is bad with collecting, so this is with that. Behold! Among them is he who is bad with paying back and bad with collecting. Indeed the best of them is the one who is good in paying back and good in collecting. And the worst of them is the one who is bad with paying back and bad with collecting. Behold! Anger is an ember in the heart of the son of Adam, as you see it in the redness of his eyes and the bulge of his jugular veins. So whoever senses something from that, ...

"The Messenger of Allah (SAW) said: 'Knowledge is based on three things, and anything beyond that is superfluous: a clear Verse, an established Sunnah, or the rulings by which the inheritance is divided fairly.'"