勸發菩提心集 3.111

3.111

三、難行忍者，有三：於劣有情所，忍彼所作不饒益，名第一難。居尊位，於自臣隷不饒益事，堪能忍受，名第二難。於其種姓婢賤有情所作增上不饒益事，堪能忍受，名第三難。

Third, difficult forbearance (duṣkarakṣānti), has three kinds: enduring harm done by inferior sentient beings is called the first difficulty. Residing in an exalted position, being able to endure harm done by one's own servants and subordinates is called the second difficulty. Being able to endure intense harm done by sentient beings of low caste and slavelike status is called the third difficulty.