Yahya related to me from Malik from Abdullah ibn Abi Bakr ibn Muhammad ibn Amr ibn Hazm from his father from Abdullah ibn Amr ibn Uthman from Abu Amra al-Ansari from Zayd ibn Khalid al-Juhani that the Messenger of Allah, may Allah bless him and grant him peace, said, "Shall I not tell you who is the best of witnesses? The one who brings his testimony before he is asked for it, or tells his testimony before he is asked for it."
Muwatta Malik Book 36, Hadith 3
← Previous Hadith Malik related to me from Yahya ibn Said from Said ibn al-Musayyab that Umar ibn al-Khattab had a dispute brought to him between a muslim and a jew. Umar saw that the right belonged to the jew and decided in his favour. The jew said to him, "By Allah! You have judged correctly.'' So Umar ibn al-Khattab struck him with a whip and said, "How can you be sure." The jew said to him, "We find that there is no judge who judges correctly but that there is an angel on his right side and an angel on his left side who guide him and give him success in the truth as long as he is with the truth. When he leaves the truth, they rise and leave him."

Muwatta Malik Book 36, Hadith 2 Next Hadith → Malik related to me that Rabia ibn Abi Abd ar-Rahman said, "An Iraqi man came before Umar ibn al-Khattab and said, 'I have come to you because of a matter which has no beginning and no end.' Umar said, 'What is it?' The man said, 'False testimony has appeared in our land.' Umar said, 'Is that so?' He said, 'Yes.' Umar said, 'By Allah! A man is not detained in Islam without just witnesses.' "

Muwatta Malik Book 36, Hadith 4