Whenever Mâlik b. Anas – Allah have mercy on him – would sit to narrate hadîth he would bath and perfume himself. If anyone raised his voice in the gathering [Imâm Mâlik] would reprimand him and say, “Lower your voice, for Allah tabâraka wa ta’âlâ said:

O Believers! Do not raise your voices over that of the Prophet [Sûrah Al-Hujarât: 2]

Whoever raises his voice over the sound of the hadîth of Allah’s Messenger – peace and blessing be upon him, then it is as if he is raising his voice over that of the Prophet – peace and blessings be upon him.”

Nasr b. Ibrâhîm Al-Maqdisî in Mukhtasar Al-Hujjah ‘alâ Târik Al-Mahajjah Vol.1 p121.

Imâm Al-Shâfi’î said:

Whenever any people of desires (heretics) came to Mâlik he would say to them, “As for me, I am upon clarity as regards my religion. As for you, you are a doubter, go and argue with another doubter like yourself.”

Al-Dhahbî in Siyar A’lâm Al-Nubalâ’ under the biography of Imâm Mâlik.

Imâm Mâlik – Allah have mercy on him – said:

Knowledge is not to be taken from four types of people: a foolish person who openly acts foolish, even if he reports the most narrations; an adherent of bid’ah who calls to his desires; a person who lies, even if I don’t accuse him of lying in hadîth; and a righteous pious worshipper who does not accurately retain what he narrates.

Al-Dhahabî , Siyar A’lâm Al-Nubalâ` in his biography of Imâm Mâlik.

Ma’n b. ‘Îsâ reports

Mâlik b. Anas was once returning from the mosque, leaning on my arm, when a man called Abû Al-Juwayrîyah who was accused of Al-Irjâ` caught up with him. He said. “O Abû ‘Abdullâh, listen to something I have to say and debate with me and let me tell you my opinion.” [Imâm] Mâlik said, “And what if you overcome me?” The man replied, “If I defeat you, you follow me.” Mâlik asked, “And what if another man comes and defeats us?” He replied, “Then we follow him.” To this, Mâlik – Allâh’s mercy be upon him – said, “O servant of Allâh, Allâh sent Muhammad – Allâh’s peace and blessings be upon him – with a single religion, but I see you moving from religion to religion. ‘Umar b. ‘Abd Al-‘Azîz said, ‘Whoever makes his religion the object of argumentation will frequently change it.’”

Al-Âjurrî, Ktâb Al-Sharî’ah Vol.1 p128.

Ma’an b. ‘Îsâ reports that Imâm Mâlik said, “I am but a man. I make mistakes sometimes and I am correct sometimes, so examine my opinions and accept anything that agrees with the Book and Sunnah; and leave anything that does not agree with the Book and Sunnah.”

Ibn ‘Abd Al-Barr, Jâmi’ Bayân Al-‘Ilm wa Fadlihi Vol.2 p465.