Abu Hatim bin Habban al-Busti: He met seventy men from the Companions of the Prophet, peace and blessings be upon him, and he was one of the best worshippers of Allah
Ahmad bin Shuayb al-Nasa'i: Trustworthy
Ahmad ibn Salih al-Jalili: Trustworthy
Ibn Hajar al-'Asqalani: Trustworthy worshiper who narrates a lot
Al-Dhahabi: Upright, great jurist
Buhayr bin Sa'd: I have not seen anyone who was more generous with knowledge than Khalid bin Ma'dan, his knowledge was in a Mushaf (copy of the Quran)
Abd al-Rahman bin Yusuf bin Kharash: Trustworthy
Abdah bint Khalid: He reached seventy of the Companions of Muhammad, peace and blessings be upon him
Muhammad bin Sa'd, the writer of al-Waqidi: Trustworthy
Ya'qub bin Shaybah al-Sadusi: Trustworthy, he did not meet Abu Ubaydah, he is Kalai, considered among the third class of jurists of the people of Sham after the Companions