the Messenger of Allah ﷺ said, "If you were to rely upon Allah with the required reliance, then He would provide for you just as a bird is provided for, it goes out in the morning with an empty stomach, and returns with a full stomach."  

قَالَ رَسُولُ اللَّهِ ﷺ لَوْ أَنَّكُمْ كُنْتُمْ تَوَكَّلُونَ عَلَى اللَّهِ حَقَّ تَوَكُّلِهِ لَرُزِقْتُمْ كَمَا تُرْزَقُ الطَّيْرُ تَغْدُو خِمَاصًا وَتَرُوحُ بِطَانًا  

There were two brothers during the time of the Messenger of Allah ﷺ. One of them used to come to the Prophet ﷺ, and the other had some business. The businessman among them complained to the Prophet ﷺ about his brother, so he said: 'Perhaps you are provided for because of him.'  

كَانَ أَخَوَانِ عَلَى عَهْدِ النَّبِيِّ ﷺ فَكَانَ أَحَدُهُمَا يَأْتِي النَّبِيَّ ﷺ وَالآخَرُ يَحْتَرِفُ فَشَكَا الْمُحْتَرِفُ أَخَاهُ إِلَى النَّبِيِّ ﷺ فَقَالَ لَعَلَّكَ تُرْزَقُ بِهِ