It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, Allah Almighty has made the truth flow upon the tongue and the heart of Sayyiduna Umar (may Allah be pleased with him)."
Only Hani' bin Abd al-Rahman (may Allah have mercy on him) narrated this hadith from Ibrahim bin Abi Ablah (may Allah have mercy on him), and al-Mu'alla bin al-Walid (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الألف / 247
Hadith Takhrij«أخرجه ابن حبان فى «صحيحه» برقم: 6895، والترمذي فى «جامعه» برقم: 3682، وأحمد فى «مسنده» برقم: 5240، 5801، وعبد بن حميد فى «مسنده» برقم: 758، والبزار فى «مسنده» برقم: 5860، 5861، والطبراني فى «الأوسط» برقم: 289، 3330»