Musnad Ahmad 68:1

Hashim narrated to us, Ya'la ibn 'Ata' narrated to 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: So whenever he would send a detachment or an army, he would send them at the beginning of the day. He said: Sakhr was a merchant man, and he used to send his trade at the beginning of the day. He said: "So he became wealthy and his wealth increased."