Musnad Ahmad 122:1

Hushaym narrated to us, he said: Ya'la ibn 'Ata informed us, from 'Umarah ibn Hadid, from Sakhr al-Ghamidi, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "O Allah, bless my nation in their early mornings." He said: And whenever he would send a detachment or an army, he would send them at the beginning of the day. He said: And Sakhr was a merchant man, and he would send his trade at the beginning of the day, so he became wealthy and his wealth increased.