Sayyiduna Anas (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: The most merciful of my Ummah towards my Ummah is Abu Bakr; the most strict regarding the religion among the Ummah is Umar; the most modest among the Ummah is Uthman (may Allah be pleased with him); Mu'adh bin Jabal (may Allah be pleased with him) has the most knowledge regarding what is lawful and unlawful; the greatest and most proficient reciter of the Qur'an is Ubayy bin Ka'b; and the greatest scholar of inheritance (or obligatory shares) among the Ummah is Zayd bin Thabit. And in every Ummah there is a trustworthy one, and the trustworthy one of this Ummah is Abu Ubaidah bin al-Jarrah.