Narrated Hudhaifa: The Prophet said to the people of Nijran, "I will send you the most trustworthy man." (Every one of) the companions of the Prophet was looking forward (to be that person). He then sent Abu 'Ubaida.

Narrated Anas bin Malik: Allah's Apostle said, " Every nation has an extremely trustworthy man, and the trustworthy man of this (i.e. Muslim) nation is Abu 'Ubaida bin Al-Jarrah."

Narrated Hudhaifa: Al-`Aqib and Saiyid, the rulers of Najran, came to Allah's Apostle with the intention of doing Lian one of them said to the other, "Do not do (this Lian) for, by Allah, if he is a Prophet and we do this Lian, neither we, nor our offspring after us will be successful." Then both of them said (to the Prophet), "We will give what you should ask but you should send a trustworthy man with us, and do not send any person with us but an honest one." The Prophet said, "I will send an honest man who Is really trustworthy." Then every one of the companions of Allah's Apostle wished to be that one. Then the Prophet said, "Get up, O Abu 'Ubaida bin Al-Jarrah." When he got up, Allah's Apostle said, "This is the Trustworthy man of this (Muslim) nation."

Narrated Hudhaifa: The people of Najran came to the Prophet and said, "Send an honest man to us." The Prophet said, "I will send to you an honest man who is really trustworthy." Everyone of the (Muslim) people hoped to be that one. The Prophet then sent Abu Ubaida bin Al-Jarrah.

Narrated Anas: The Prophet said, "Every nation has an Amin (i.e. the most honest man), and the Amin of this nation is Abu 'Ubaida bin Al-Jarrah."

Narrated Hudhaifa: The Prophet said to the people of Najran, "I will send to you an honest person who is really trustworthy." The Companion, of the Prophet each desired to be that person, but the Prophet sent Abu 'Ubaida.

Narrated Anas: The Prophet said, "For every nation there is an Amin (honest, trustworthy person) and the Amin of this nation is Abu 'Ubaida."

Narrated Al-A'raj: Abu Huraira said, "You people claim that Abu Huraira narrates many narrations of Allah's Apostle. (Anyhow) with Allah will be our appointment. I was a poor man, and used to stick to Allah's Apostle contented with what will fill my stomach, and the Muhajirin (emigrants) used to be busy trading in the markets, and the Ansar used to be busy looking after their properties. One-day I heard Allah's Apostle saying, 'Who will spread his Rida' (a garment covering the upper part of the body) till I finished my speech and then fold it, (i.e. wrap it over your body), in which case he will never forget anything he had heard from me." So I spread my garment which I was wearing; and by Him Who sent Muhammad with the Truth, ever since, I have never forgotten whatever I heard from him (the Prophet)" (See, Hadith No. 119, Vol. 1)

Narrated `Abdullah: We used to pray behind the Prophet and used to say: "As-Salamu 'Al-Allah. The Prophet said, "Allah himself is As-Salam (Name of Allah), so you should say: 'at-Tahiyatu lil-laihi was- sala-watu wattaiyibatu, as-sallamu 'Alasia aiyuha-n-nabiyyu wa rahrmatu-l-lahi wa barak-atuhu, As-salamu 'alaina wa 'ala 'ibaldi-l-lahi as-salihin. Ashhadu an la ilaha il-lallah, wa ash-hadu anna Muhammadan `Abduhu wa rasuluhu."'