Analogy and blind following

Sayyiduna Awf bin Malik (may Allah be pleased with him) reports that the Prophet (peace and blessings be upon him) said: "My Ummah will divide into seventy-odd sects. Among them, the greatest trial for my Ummah will be the people who judge matters by analogy based on their own opinion; they will make the unlawful lawful and the lawful unlawful." (Allamah al-Haythami says:) I say: Ibn Majah recorded the opening part of this report.
Al-Tabarani in al-Mu'jam al-Kabir and al-Bazzar recorded it, and its narrators are the narrators of the Sahih.

Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "This Ummah will act for a period according to the Book of Allah, then for a period according to the Sunnah of the Messenger of Allah, and then for a period according to opinion. When they act (according to opinion), they will go astray and lead others astray."
Abu Ya'la recorded it; its chain contains a narrator, Uthman bin Abd al-Rahman al-Zuhri, whose weakness is agreed upon.

Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) said: Hold opinion in suspicion in matters of religion! I remember about myself that I did not accept the command of the Prophet (peace and blessings be upon him) in a matter, although in that situation I spared no effort in seeking the truth. That was on the day of the incident of Abu Jandal (at the Treaty of Hudaybiyah), when a written treaty was about to be made between the Prophet (peace and blessings be upon him) and the people of Makkah. The Prophet (peace and blessings be upon him) said: Write: 'Bismillah al-Rahman al-Rahim' (seeking blessing through the name of Allah, the Most Gracious, the Most Merciful). They said: Do you think that we have affirmed what you say? Write: 'Bismika Allahumma' (O Allah, seeking blessing through Your name). Sayyiduna Umar (may Allah be pleased with him) said: The Prophet (peace and blessings be upon him) agreed to this, but I did not accept it, until the Prophet (peace and blessings be upon him) said to me: O Umar, you see that I have agreed, and still you refuse? Sayyiduna Umar said: So I agreed.
Abu Ya'la recorded it, and its narrators have been declared trustworthy, even though Mubarak bin Fadalah is among them.

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Prophet (peace and blessings be upon him) returned from the Battle of Hunayn, this surah was revealed to him: "When the help of Allah and the victory come." After this comes the whole incident (in which it is later mentioned:) The Prophet (peace and blessings be upon him) said: O Ali bin Abi Talib! O Fatimah bint Muhammad! The help of Allah and the victory have come, and I have seen people entering the religion of Allah in multitudes. So I declare my Lord free of every defect, together with His praise, and I seek His forgiveness; indeed, He is Ever-Accepting of repentance. O Ali, after me there will be jihad against the believers. Sayyiduna Ali (may Allah be pleased with him) asked: On what basis will we fight the believers, those who say: We believe in Allah Almighty? The Prophet (peace and blessings be upon him) said: Because of introducing new things into the religion (they will be fought), when they act on the basis of opinion; and there is no room for opinion in the religion, because the religion has come from the Lord: His command and His prohibition prevail in it. Sayyiduna Ali (may Allah be pleased with him) said: O Messenger of Allah, what is your view if we face a matter about which no Qur'an has been revealed and for which there is no Sunnah of yours? The Prophet (peace and blessings be upon him) said: You will present that matter to a council (shura) of the worshippers from among the believers, and do not give a judgement on it based on the opinion of any one person. If I were to appoint anyone as my successor, no one would be more entitled than you, because you accepted Islam early and you are related to the Messenger of Allah (and you are also my son-in-law). The leader of the believing women is your wife, and before all of this there were the trials Abu Talib endured on my account, at the time when the Qur'an was being revealed; so I am also very keen to look after his children for his sake.
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Abdullah bin Kaysan, about whom Imam Bukhari (may Allah have mercy on him) said: He is munkar al-hadith (his narrations are rejected).

Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "The affair of the Children of Israel remained balanced until the children of captives from other nations appeared among them. Then they began to give rulings on the basis of opinion, so they went astray and led (others) astray."
Al-Bazzar recorded it; its chain contains a narrator, Qays bin al-Rabi', whom Shu'bah and al-Thawri declared thiqah (trustworthy), while a group declared him da'if (weak). Ibn al-Qattan said: This chain is hasan (good).

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) reports that the Prophet (peace and blessings be upon him) said: "Soon you will see devils from among humankind. One of them will hear a hadith and then compare it by analogy with something else, and then he will lead people astray from (following) the person from whom they heard the hadith, the one who narrated it (that is, those people will not follow what he narrated)."
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Abd al-Ghafur Abu al-Sabbah, whose weakness the hadith scholars agree upon.

Imam al-Sha'bi narrates: Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: Beware of saying: What is your view? What is your view? For those before you were destroyed by saying: What is your view? What is your view? And do not compare one thing to another by analogy, for feet will slip after being firm. When someone is asked about something of which he has no knowledge, he should say: I do not know, for this (saying: I do not know) is one third of knowledge.
Al-Tabarani recorded it. Imam al-Sha'bi did not hear from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), and its chain contains a narrator, Jabir al-Ju'fi, who is da'if (weak).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: I do not compare one thing to another by analogy, for feet slip after being firm.
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Jabir al-Ju'fi, who is da'if (weak).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: Every year that comes, the one after it will be worse than it. No year is better than another year, and no nation is better than another nation; rather, your scholars and your best people will depart, and then people will come who judge matters by analogy based on their own opinion, and they will demolish and ruin Islam.
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Mujalid bin Sa'id, who suffered from confusion (ikhtilat).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: None of you should blindly follow (taqlid) another person in his religion, such that if that (other person) believes, he too believes, and if he disbelieves, he too disbelieves. If you must follow someone, then follow the one who has died, for the living person is not safe from trial (fitnah).
Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are the narrators of the Sahih.

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: None of you should be an "imma'ah"! The people asked: O Abu Abd al-Rahman! What is meant by "imma'ah"? He said: That you say: I am with the people; if they are guided, I will be guided too, and if they go astray, I will go astray too. Beware! Each one of you should resolve within himself that if the people disbelieve, he will not disbelieve.
Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains al-Mas'udi, who suffered from mental confusion (ikhtilat), and its remaining narrators are thiqat (trustworthy).