Ubadah bin al-Samit (may Allah be pleased with him) was present at Badr, Uhud, the Pledge under the Tree and al-Aqabah, and was a leader

Sufyan bin Uyaynah states that Ubadah bin al-Samit (may Allah be pleased with him) is a Companion who was present at Badr, at Uhud, at Aqabah, and at the Tree (i.e., one who took part in the Pledge of Ridwan under the tree), and he was also a naqib.

Ahmad bin Hanbal states that Ubadah bin al-Samit (may Allah be pleased with him) was present at Badr, at Uhud, at the Tree, and at Aqabah, and was a naqib.

It is narrated from Urwah, concerning the names of those who took part in the Aqabah and pledged allegiance to the Messenger of Allah (peace and blessings be upon him), that he said: From Banu Awf, and then from Banu Salim bin Qawqal, was Ubadah bin al-Samit (may Allah be pleased with him). He was a naqib (chief), and he took part in the Battle of Badr.

Ibn Tawus narrates from his father, who narrates from Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) appointed him over (the collection of) the charities, and he (peace and blessings be upon him) said: "O Abu al-Walid!"
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from al-Mukhdaji that he said: Ubadah bin al-Samit (may Allah be pleased with him) used to be addressed as "O Abu al-Walid."

It is narrated from Makhul that he said: Ubadah bin al-Samit and Shaddad bin Aws (may Allah be pleased with them both) lived in Bayt al-Maqdis (Jerusalem), and Ubadah's (may Allah be pleased with him) kunyah was Abu al-Walid.

Ma'bad bin Ka'b bin Malik narrates from his brother Abdullah bin Ka'b, who narrates from his father Ka'b bin Malik (may Allah be pleased with him), that he said: We set out in the Hajj in which we pledged allegiance to the Messenger of Allah (peace and blessings be upon him) at Aqabah, and at that time the naqib (chief) of Banu Awf bin al-Harith was Ubadah bin al-Samit (may Allah be pleased with him).

Ata bin al-Sa'ib narrates from the son of Ubadah bin al-Samit (may Allah be pleased with him), who narrates from his father (Ubadah (may Allah be pleased with him)), that Mu'awiyah (may Allah be pleased with him) asked them (the Ansar): "O people of the Ansar! What is the matter with you, that you did not come to receive me along with your brothers from Quraysh?" Ubadah (may Allah be pleased with him) replied: "Because of our need (poverty and want)." Mu'awiyah (may Allah be pleased with him) said: "Then why did you not come on your water-carrying camels?" Ubadah (may Allah be pleased with him) said: "We wore them out (completely) on the day of Badr in the company of the Messenger of Allah (peace and blessings be upon him)."

It is narrated from Ya'qub bin Ata that he said: Ubadah bin al-Samit and Amir bin Abdullah (may Allah be pleased with them both) were buried in Bayt al-Maqdis (Jerusalem).

It is narrated from Abu Sallam al-Aswad that he said: Whenever I came to Bayt al-Maqdis (Jerusalem), I would stay with Ubadah bin al-Samit (may Allah be pleased with him).

Yahya bin Abdullah bin Bukayr states that Ubadah bin al-Samit (may Allah be pleased with him) died in the year 34 AH in al-Ramlah, in the land of Palestine in al-Sham, and at that time he was 72 years old.

Al-Haytham bin Adi states that Ubadah bin al-Samit (may Allah be pleased with him) died in Bayt al-Maqdis (Jerusalem) and was buried there in the year 34 AH, and at that time he was 72 years old.

Ishaq bin Qabisah bin Dhu'ayb narrates from his father (Qabisah) that Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him) objected to certain things done by Mu'awiyah (may Allah be pleased with him), and said to him: "I will not live with you in this land." So he set off for Madinah. Sayyiduna Umar (may Allah be pleased with him) asked him: "What has brought you to me? May Allah Almighty never grant conquest and victory to a land in which you and people like you are not present. Go back; Mu'awiyah has no authority (rule) over you."