It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Love your friend moderately, for perhaps one day he may become your enemy; and hate your enemy moderately, for perhaps one day he may become your friend."
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith is narrated from Abdullah bin Umar (may Allah be pleased with them both) only with this chain; Abbad bin al-Awwam is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5119
Hadith Gradingمحدثین:إسناده ضعيف لضعف جميل بن زيد
Hadith Takhrij«قال الهيثمي: فيه جميل بن زيد وهو ضعيف «مجمع الزوائد ومنبع الفوائد، ج 8، ص 88»» «أخرجه الطبراني فى «الكبير» برقم: 14081»