Looking for the source

[Jay Nityananda Das]

|| Hare Krsna ||

Respected Scholars,

Namo Namah.

I am looking for the source of the original verses along with their different readings --- a. vinase viparita kale ardham tyajanti pandita; b. apat kale nasti maryada. Also, please share any similar verses to this effect. I would be highly obliged to receive any help in this regard.

Thanks in advance,

das,

Jaya Nityananda Dasa

("Nandagrama" Varnasrama Community Project)