Thirteen kinds of ascetic practices have been allowed by the Blessed One to clansmen who have given up the things of the flesh and, regardless of body and life, are desirous of undertaking a practice in conformity [with their aim].
i. the refuse-rag-wearer’s practice,
ii. the triple-robe-wearer’s practice,
iii. the alms-food-eater’s practice,
iv. the house-to-house-seeker’s practice,
v. the one-sessioner’s practice,
vi. the bowl-food-eater’s practice,
vii. the later-food-refuser’s practice,
viii. the forest-dweller’s practice,
ix. the tree-root-dweller’s practice,
x. the open-air-dweller’s practice,
xi. the charnel-ground-dweller’s practice,
xii. the any-bed-user’s practice,
xiii. the sitter’s practice (Vissuddhimagga, 2011, pp 55).
Some people argue that these practices are originally introdused by Ven. Buddhagosha thero. However, there are number of suttas and texts in EBTs mention ascetic practices; at least one of them.
I found Sappurisa Sutta (MN 113) mentions number of ascetic practices.
What are the other suttas that discuss about ascetic practices? Is it possible to find all 13 practices in EBTs?