Padarvakil, dar urfiyat shakhsest, ki dar shabi nikoh bo rizoiyati arus vazifai padari arusro ijro mekard. Odatan tagoi, amak va yo yagon kheshi nazdiki arus Padarvakil intikhob meshud.
Padarvakil pesh az nikoh bo du nafar guvoh ba nazdi arus rafta khohish mekard, ki vakolati khudro ba u suporad va ba nikohi domodshavanda rozigi dihad. Padarvakil badi giriftani rozigii arus, dar nazdi domullo va domodshavanda az nomi u ba nikoh vakolat medod va inro guvohho tasdiq mekardand.