Imam Muhammad al-Baqir (as): My father [Imam Ali al-Sajjad (as)] used to say, 'The best of occupations is tilling the land, the produce of which is eaten by both the good-doer and the wrongdoer. That which the good-doer eats will seek forgiveness on his [i.e. the grower's] behalf, and that which the wrongdoer eats will curse him [i.e. the wrongdoer]. The birds and animals eat thereof too.' al-Kāfī