Where is recorded that the Buddha said this (perhaps about microorganisms)?

I wish to verify the reference of events claimed by Bhante Vimalaramsi: > 1. Buddha said there are 80 different kinds of beings in your body that are dying everyday; 2. Also, a certain Arahant with psychic ability saw death of living beings in ground, water, and air, so he stood in one spot, stopped drinking water, and started holding his breath, so Buddha replied the purpose of attaining Arahantship is so that we could get off the Wheel of Samsara and not have these kinds of problem again. > See the video at https://youtu.be/TSwtv7VqMh0?t=101 . Do you guys have any idea of the source? Was this recorded in any of the suttas or vinaya, or simply a late commentary, abhidhamma, or modern scholarship, etc.? The closest account I had came across is controversy of Cakkhupala stepping on ants during walking meditation (https://www.tipitaka.net/tipitaka/dhp/verseload.php?verse=001) , and Vinaya rules on filtering water before using (which is more likely referring to water-borne insects, rather than microorganisms).