bstan pa'i gnas tshad

the length of time the teachings will endure [IW]

the length of time the teachings will endure [in sutra tradition, starting after the teacher's parinirvana, the teachings of the buddha are supposed to last 500 years x 10. In the phug tradition phug lugs by adding the dus bzhi snga ma dang phyi ma, lnga stong brgya dang bzhi] [IW]