Pahlavi Texts, Part III (SBE24), E.W. West, tr. , at sacred-texts.com
1. The fifty-sixth subject is this, that, when any one wishes to make an evacuation of water, it is necessary that he should not make the evacuation of water while standing on his feet. 2. Because, in the commentary of the Vendîdâd 1, it is said, concerning that, that it is a serious sin.
3. When they squat for evacuating water it is necessary that it extend only 2 from the heel as far as the end of the toes; for, if it be more, every drop is a Tanâvar sin. 4. And, when they wish to squat for the evacuation of water, they are to utter one Yathâ-ahû-vairyô 3; and, when the action is over, they are to recite the Ashem-vohû 4 three times, the Humatanãm 5 twice, the Hukhshathrôtemâi 6 three times, the Yathâ-ahû-vairyô four times, and the Ahunem-vairîm 7 to the end. 5. Because, every time that they act like this, they are pleasant in the eyes and hearts of mankind, and their words are more approved in the vicinity of kings.
317:1 Pahl. Vend. XVIII, 98.
317:2 Lp, B29 have 'that they do not make the evacuation of water more than.'
317:3 See Mkh. XXVII, 70 n.
317:4 See Chap. VII, 1 n. The recitation of this and the four following formulas is commanded in Vend. XVIII, 97.
317:5 Yas. XXXV, 4-6.
317:6 Yas. XXXV, 13-15.
317:7 Yas. XIV, end.