Silsilat al-Ahadith al-Sahihah

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that when the people of Yemen came to the Messenger of Allah (peace and blessings be upon him) and requested, "Send with us someone who will teach us the Sunnah and Islam," the Prophet (peace and blessings be upon him) took the hand of Sayyiduna Abu Ubaidah bin Jarrah and said: "He is the trustworthy one of this Ummah."