Jameel bin Umair narrates from his maternal uncle (Sayyiduna Abu Burdah bin Niyar, may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) was asked: "What is the best means of livelihood?" He (peace and blessings be upon him) replied: "A blessed (honest) trade and a man's earning through his own hand."
Hadith Referenceالفتح الربانی / كتاب البيوع والكسب والمعاش وما يتعلق بالتجارة / 5729
Benefits: … By "blessed sale" (bay‘ mabrur) is meant that trade in which there is no doubt or dishonesty. By earning through one's hand is meant farming, craftsmanship, and similar professions.