Mimosa pudica is not known to contain DMT as far as I know, but there are low amounts of 5-MeO-DMT in stem and leaf after the first year. That being said, I doubt either of these compounds is present in the seeds in any significant way.
https://wiki.dmt-nexus.me/DMT#Mimosa_spp.https://wiki.dmt-nexus.me/5-MeO-DMT#Mimosa_spp.It is only by my hand, by my face, my heart, my spirit
that either I will wither, or I will bloom,
I will become as green land, as tilled earth
I will germinate, I will sprout.