Sayyiduna Rifa'ah bin Rafi' (may Allah be pleased with him) narrates from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said to Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them both): "All praise is for Allah, who has supported me through you two; and were it not that you two differ (with each other), I would not go against you."
This hadith is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) only with this chain, and Habib (may Allah have mercy on him), the scribe of Malik, is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الميم / 7299
Hadith Gradingمحدثین:إسناده ضعيف جدًّا، فيه حبيب بن أبي حبيب متروك
Hadith Takhrij«قال الهيثمي: فيه حبيب بن أبي حبيب كاتب مالك وهو متروك «مجمع الزوائد ومنبع الفوائد، ج 9، ص 52»»