Narrated Rifaa
(who was one of the Badr warriors) Gabriel came to the Prophet (ﷺ) and said, "How do you look upon the warriors of Badr among yourselves?" The Prophet (ﷺ) said, "As the best of the Muslims." or said a similar statement. On that, Gabriel said, "And so are the Angels who participated in the Badr (battle).
Narrated Mu`adh bin Rifa`a bin Rafi`
Rifa`a was one of the warriors of Badr while (his father) Rafi` was one of the people of Al-`Aqaba (i.e. those who gave the pledge of allegiance at Al-`Aqaba). Rafi` used to say to his son, "I would not have been happier if I had taken part in the Badr battle instead of taking part in the 'Aqaba pledge."
Narrated Ibn `Abbas
The Prophet (ﷺ) said on the day (of the battle) of Badr, "This is Gabriel holding the head of his horse and equipped with arms for the battle.