Manubhashya 3.156.p2

3.156.p2

Medhātithi’s commentary (manubhāṣya):
‘One who teaches for a stipulated fee’— one who teaches only while be is engaged on a fee; one who undertakes the work of teaching after having made the stipulation that ‘if you pay me so much, I shall teach you the Veda,’ is called ‘one who teaches for a stipulated fee.’ Such is the form of payment known among bearers and others. If, however, without having verbally stipulated that one would receive a certain amount of money, one does the work of teaching and receives payment afterwards, then such a teacher is not ‘one who teaches for a stipulated fee.’ In fact, teaching in return for payment of an amount not previously stipulated, has been actually sanctioned.