لَوْ أَنَّكُمْ تَوَكَّلْتُمْ عَلَى اللَّهِ حَقَّ تَوَكُّلِهِ لَرَزَقَكُمْ كَمَا يَرْزُقُ الطَّيْرَ
Transliteration
Law annakum tawakkaltum 'alallahi haqqa tawakkulihi larazaqakum kama yarzuqut-tayr
Translation
If you were to rely upon Allah with true reliance, He would provide for you as He provides for the birds.
Reference: Tirmidhi 2344