As an alternative, a brahmana may also take to the vaisya's occupational duty of agriculture, cow protection, or trade. He may depend on that which he has received without begging, he may beg in the paddy field every day

Expressions researched:
"As an alternative, a brahmana may also take to the vaisya's occupational duty of agriculture, cow protection, or trade. He may depend on that which he has received without begging, he may beg in the paddy field every day"

Srimad-Bhagavatam

SB Canto 7

As an alternative, a brāhmaṇa may also take to the vaiśya's occupational duty of agriculture, cow protection, or trade. He may depend on that which he has received without begging, he may beg in the paddy field every day, he may collect paddy left in a field by its proprietor, or he may collect food grains left here and there in the shops of grain dealers.

SB 7.11.16, Translation and Purport

As an alternative, a brāhmaṇa may also take to the vaiśya's occupational duty of agriculture, cow protection, or trade. He may depend on that which he has received without begging, he may beg in the paddy field every day, he may collect paddy left in a field by its proprietor, or he may collect food grains left here and there in the shops of grain dealers. These are four means of livelihood that may also be adopted by brāhmaṇas. Among these four, each of them in succession is better than the one preceding it.

A brāhmaṇa is sometimes offered land and cows in charity, and thus for his livelihood he may act in the same way as a vaiśya, by cultivating land, giving protection to cows and trading off his surpluses. A better process, however, is to pick up grains from a field or from a dealer's shop without begging.