Al-Baqarah 2:186

You will find that Allah has given you things without asking; and that even in the absence of your prayer, He plans in your favour. So when you ask from Him, how can it be that He does not answer? “For indeed I am Near”, He says. So have trust in your Lord. He does not delay, except for your greater gain. He does not withhold, except for your benefit. And He does not disappoint, those who raise their hands to Him. “I am indeed Near. I respond to the calling of the caller at the time he calls Me. So let them respond to Me, and believe in Me, so that they may be guided.”

Tawakkul (Putting Trust in Allah) Pt. II

Abu Huraira reported: The Prophet, peace and blessings be upon him, said, “People whose hearts are like the hearts of birds will enter Paradise.” (Sahih Muslim 2840; authentic according to Muslim) An-Nawawi said, “It is interpreted to mean they are those who rely upon Allah, or those who have soft hearts.” (Riyad as-Salihin 1/59)

Umar ibn Al-Khattab reported: The Messenger of Allah, peace and blessings be upon him, said, “If you were to rely on Allah as He should be relied on, He would provide for you just as He provides for the birds. They go out early in the morning hungry and return in the evening fully satiated.” (Sunan al-Tirmidhi 2344; authentic according to Tirmidhi)