Allah Most High says in the Qur'aan Karim: "And there is not a beast in the earth but the sustenance thereof dependeth on Allah..." - Surah Hud, 6
"See they not that Allah enlargeth the provision for whom He will, and straiteneth (it for whom He will)..." - Surah Rum, 37
"...So seek your provision from Allah, and serve Him, and give thanks unto Him,..." - Surah `Ankabut, 17
"... We have apportioned among them their livelihood in the life of the world,..." - Surah Zukhruf, 32