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: "Our freed slaves are from among us."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated these hadiths from Ubaydullah bin Umar (may Allah have mercy on him) except Maslamah bin Salim (may Allah have mercy on him)."
In the printed Dar al-Haramayn edition it is recorded like this (al-Azdi), whereas the correct name is (al-Hasan bin Yahya al-Ruzzi).
Hadith Referenceالمعجم الأوسط / باب العين / 4549
Hadith Gradingمحدثین:إسناده ضعيف لضعف مسلمة بن سالم الجهني
Hadith Takhrij«قال الهيثمي: فيه مسلم بن سالم ويقال مسلمة بن سالم ضعفه أبو داود وذكره ابن حبان في الثقات «مجمع الزوائد ومنبع الفوائد، ج 1، ص 195»»