Imaam Maalik bin Anas 179 AH (may Allah have mercy on him) said:
من ابتدع في الإسلام بدعة يراها حسنة فقد زعم أن محمدا.. خان الرسالة
، ثم قال : “اقرأوا إن شئتم قول الله تعالى: (الْيَوْمَ أَكْمَلْتُ لَكُمْ دِينَكُمْ وَأَتْمَمْتُ عَلَيْكُمْ نِعْمَتِي وَرَضِيتُ لَكُمُ الْإسْلامَ دِيناً
، فما لم يكن يومئذٍ ديناً لا يكون اليوم ديناً
Whoever introduces an innovation into Islam thinking that it is good is implying that Muhammad (peace be upon him) betrayed his mission, because Allah says:
“…This day, I have perfected your religion for you…” [Maidah 5:3]
So, whatever was not part of the religion on that day, cannot be part of the religion today.
[al-I’tisaam (protection from biddah) Imam Shaatibi,, Vol.1 P64-65]
Hadrat Ali about Hadrat Umar (Radhiallahu anhum) !
“After Abu Bakr, ‘Umar took command, and I was among those pleased with his appointment. He ruled according to the code of Allah’s Messenger and his Companion, Abu Bakr, following their footsteps the way the young camel follows its mother.
I swear by Allah, he was kind and gentle with the weak, a champion of the cause of the oppressed and without any blame concerning Allah’s religion. Allah manifested examples of the truth through him and made the truth a part of him to such a degree that we used to think that an Angel was speaking with his tongue. Allah made his conversion a strengthening factor for Islam, and placed in the hearts of the hypocrites a fear of him, and in the hearts of the believers love for him. Allah’s Messenger (peace be upon him) compared him to Angel Jibril (‘alay his-salam) in his harshness towards the enemies of Islam.
So who among you can be compared to the two of them?! May Allah’s Mercy be upon them, and may Allah provide us with the ability to continue in their paths. Let whoever loves me, love them, for whoever does not love them has angered me, and I will have nothing to do with him. If I hear anymore derogatory talk about the two of them, I will punish the offenders severely. After today, whoever is brought before me will get the punishment of a slanderer. Verily the best of this nation after its Prophet were Abu Bakr and ‘ Umar (radhi allahu anhum). Then Allah knows who is the best, I am saying this asking Allah’s forgiveness for both you and myself.”
[Footnotes; Al-Lalika’I in Sharp Usiil Fliqtid Ahlu’l-Sunnah, 7 /1 295/2456.]
Abu Hurairah رضي الله عنه reported that the Messenger of Allaah صلى الله عليه وسلم said: ❝The parts of land dearest to Allaah are its Masaajid, and the parts most hateful to Allaah are markets.❞
[Saheeh Muslim (1416)]
Salmaan Al-Faarisee رضي الله عنه said: The Prophet صلى الله عليه وسلم said: ❝Do not, if you can help, be the first to enter the market and the last to leave it because it is an arena of Shaitaan and the standard of Shaitaan is set there.❞
[Saheeh Muslim (6006)].
Hudhayfah_ibn_al-Yaman RadiAllah anhu said:
“When anything distressed the Prophet he prayed.”