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: "When you see those who revile my Companions, then say: 'May Allah curse the worse of you two.'"
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ubaydullah except Sayf; al-Nadr is alone in narrating it."
This is how it is in the Dar al-Haramayn edition, whereas the correct form is (al-Hasan bin Yahya al-Ruzzi).
Hadith Referenceالمعجم الأوسط / باب الميم / 8366
Hadith Takhrij«أخرجه الترمذي فى «جامعه» برقم: 3866، والبزار فى «مسنده» برقم: 5753، والطبراني فى «الكبير» برقم: 13588، والطبراني فى «الأوسط» برقم: 7015»