《北史·本记·卷三》
今年春耕开始，民众应尽力耕作，特令各地督促农务，有牛的要比往年更加努力耕作，无牛的加倍用功于常年。
今东作既兴，人须肄业，其敕在所督课田农，有牛者加勤于常岁，无牛者倍庸于余年。
"The spring farming has started this year. People should try their utmost to farm. We hereby order every region to supervise the agricultural work. Those who have oxen should farm more than in previous years; those who have no oxen should double the effort of previous years.