Musnad Ahmad 6:21

Waki’ narrated to us, Talhah ibn Yahya ibn Talhah narrated to me, from Ibrahim ibn Muhammad ibn Talhah, from Abdullah ibn Shaddad, that a group of three men from Banu ‘Udhrah came to the Prophet, peace and blessings of Allah be upon him, and accepted Islam. He said: The Prophet, peace and blessings of Allah be upon him, said: "Who will take care of them for me?" Talhah said: "I will." He said: So they were with Talhah. Then the Prophet, peace and blessings of Allah be upon him, sent out an expedition, and one of them went out in it and was martyred. He said: Then he sent out another expedition, and another of them went out in it and was martyred. He said: Then the third died on his bed. Talhah said: I saw these three who were with me in Paradise. I saw the one who died on his bed in front of them, and I saw the one who was martyred last following him, and I saw the one who was martyred first as the last of them. He said: That troubled me. He said: So I came to the Prophet, peace and blessings of Allah be upon him, and mentioned that to him. He said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "And what do you find strange about that? There is no one better in the sight of Allah than a believer who lives a long life in Islam for the sake of his glorifying (Tasbih), magnifying (Takbir), and declaring the oneness of Allah (Tahlil)."