Hadith: There were two brothers during the time of the Prophet (may Allah's peace and blessings be upon him). One of them used to come to the Prophet (may Allah's peace and blessings be upon him) and the other used to work to earn a living. Once, the working brother complained to the Prophet (may Allah's peace and blessings be upon him) about his brother. Thereupon, he replied: Perhaps you are granted sustenance because of him

عن أنس بن مالك رضي الله عنه قال: كان أخوانِ على عهد النبي صلى الله عليه وسلم وكان أحدُهما يأتي النبي صلى الله عليه وسلم والآخر يَحتَرِف، فَشَكَا الُمحتَرِف أَخَاه للنبي صلى الله عليه وسلم فقال: «لعَلَّك تُرزَقُ بِهِ».
[صحيح] - [رواه الترمذي]

Anas ibn Mālik (may Allah be pleased with him) reported: There were two brothers during the time of the Prophet (may Allah's peace and blessings be upon him). One of them used to come to the Prophet (may Allah's peace and blessings be upon him) and the other used to work to earn a living. Once, the working brother complained to the Prophet (may Allah's peace and blessings be upon him) about his brother. Thereupon, he replied: "Perhaps you are granted sustenance because of him."
[Authentic hadith] - [Narrated by At-Termedhy]

Explanation

Anas (may Allah be pleased with him) said that there were two brothers at the time of the Prophet (may Allah's peace and blessings be upon him). One of them used to regularly attend the Prophet's gatherings and stay with him in order to acquire knowledge, and learn his words and actions. As for the other brother, he used to have a profession and work to earn a living. Once the one who was working complained to the Prophet (may Allah's peace and blessings be upon him) about his brother who did not work. So, he told him soothingly that perhaps his financial support of his brother was the reason that sustenance had been made easy for him to attain. That is because Allah continues to aid the one, as long as he aids his brother.