It is narrated from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "In the last times there will be people who are brothers openly but enemies of one another inwardly." It was said: "O Messenger of Allah (peace and blessings be upon him), how will that be?" He (peace and blessings be upon him) said: "It will be because of their (worldly) desire for one another and their fear of one another."
This hadith is narrated from Sayyiduna Mu'adh (may Allah be pleased with him) only with this chain, and Abu Bakr bin Abi Maryam (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الألف / 434
Hadith Takhrij«أخرجه أحمد فى «مسنده» برقم: 22479، والبزار فى «مسنده» برقم: 2650»