4. Sāriputtasuttavaṇṇanā

[24] Catutthe parimukhaṃ satiṃ upaṭṭhapetvāti ārammaṇābhimukhaṃ satiṃ ṭhapayitvā mukhasamīpe katvā. Tathā hi vibhaṅge vuttaṃ:-

"ayaṃ sati upaṭṭhitā hoti supaṭṭhitā nāsikagge vā mukhanimitte

vā, tena vuccati parimukhaṃ satiṃ upaṭṭhapetvā"ti.