It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Love your friend in moderation, for perhaps one day he may become your enemy; and hate your enemy in moderation, for perhaps one day he may become your friend."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated these two hadiths from Abu al-Zinad except Abbad bin Kathir; Muhammad bin Mahan is alone in both of them."
Hadith Referenceالمعجم الأوسط / باب الميم / 6185
Hadith Takhrij«أخرجه الترمذي فى «جامعه» برقم: 1997، والبزار فى «مسنده» برقم: 9883، والطبراني فى «الأوسط» برقم: 3395»