True misguidance is that you approve now what you used to repudiate before (because it was wrong) and repudiate now what you used to approve before; and be aware of changing colours in the religion, for the religion of Allāh is one.
Ibn Baṭṭah, Al-Ibānatu Al-Kubrā ḥadīth 25, and others.
“O people, there are four characteristics to come, whoever can avoid reaching them should do so.” [People] asked, “And what are they?” He replied, “There will come a time in which falsehood will rise, and a time will come in which a man will say, ‘By Allāh, I do not know what I am’, he will neither live nor die upon insight (knowledge of what he should be). And a time will come in which a man will start his day on one religion and end it on another. And a time will come when a man will be given wealth from the wealth Allāh provides, in return for saying what is wrong and false and for which Allāh will be angry with him.”
Ibn ʿAsākir, Tārīkh Dimishq 58:442
Whoever hears of a bidʿah, let him not tell it to those who are with him, lest he cast it into their hearts.
Al-Dhahabī, Siyar ʾAʿlām Al-Nubalāʾ 7:261.
The insightful and wise do not trust that they are safe from four things: a past sin about which it is not known what the Lord Almighty will do, the remaining lifespan wherein it is not known what destruction lies, some (apparent) advantage a person is given but which could be a lure (from Allāh) in recompense for his wrongdoing, a misguidance that has been beautified – so that he thinks it is guidance – and a momentary deviation of the heart, for a person can be stripped of his religion without realizing it.
Al-Dhahabī, Siyar Aʿlām Al-Nubalāʾ 8:406.
There are two blessings I have been blessed with, I know not which of them is greatest: that Allāh guided me to Islām, and that he did not make me a Ḥarūrī (from the Khawārij extremists).
ʿAbd Al-Razzāq Al-Ṣanʿānī, Al-Muṣannaf ḥadīth 18667.
When you adorn your copies of the Qurān and embellish your mosques, destruction will be upon you.
Ibn Al-Mubārak, Al-Zuhd wa Al-Raqāʾiq, article 746. Shaykh Al-Albānī stated that the chain of transmission of this narration consists of reliable reporters, except he did not know if the reporter Bakr b. Suwādah had heard directly from Abū Al-Dardāʾ. The narration corroborates a similar ḥadīth reported from the Prophet ﷺ himself. See Al-Ṣaḥīḥah ḥadīth 1351.
Do not sit with the people of desires (Bidʿah, heresy), even if you think you have a response [to what they say].
Al-Harawī, Dhamm Al-Kalām article 765.
Sharīk b. ʿAbdillāh came to us around fifty years ago, and we said to him, “O Abū ʿAbdillāh, here amongst us there are people from the Muʿtazilah who reject these āḥādīth [like]: ‘Allāh descends to the lowest heaven’, and ‘the people of Jannah will see their Lord’. So Sharīk narrated to me around ten such narrations, then said: ‘As for us, we have taken our religion from the sons of the Tābiʿīn, from the Ṣaḥābah. Who have they taken from?’”
Al-Ḏahabī, Al-ʿUluw. Graded ṣaḥīḥ by Al-Albānī in Mukhtaṣar Al-ʿUluw article 146.
If the people were gathered on one plain, all of them believers, except for two unbelievers amongst them, they would join each other. And if the people were gathered on one plain, all of them unbelievers, except for two believers amongst them, they would join each other.
Ibn Baṭṭah, Al-ʾIbānah Al-Kubrā 1:455
Do not sell food or clothes to them, and do not buy from them. And he said, The Khawārij are renegades, an evil people.
Al-Khallāl, Al-Sunnah 1:155