Sankshipt uttar: Nahi. “Subah ka” aur “dopahar ka” pani alag cheez nahi hote. Dono ka niyam ek hi hai—ukāla hua, barik chhanna hua, aur “same din ka” pani.

Thoda vistaar se:

• Paryushan me shravako ke liye pani ukāla-kar (ukalo) aur chhān‑kar pina chahiye, aur use “kal” (vaidhta samay) ke andar hi lena chahiye. Chaturmās (jis me Paryushan aata hai) me aam taur par ukāle hue pani ka “kal” 24 ghante maana jata hai.
• Isliye kai sangh/ghar subah ek batch aur dopahar/shaam se pehle doosri batch banā dete hain, taki hamesha nava (taaza) ukalo mile aur jīva‑himsā ka sankoch ho. Isi wajah se log “subah ka pani” aur “dopahar ka pani” bolte hain, par dhārmik roop se dono ka niyam ek hi hai.
• Suryāst ke baad, jo log Chauvihār rakhte hain, ve pani bhi nahi lete. Jo Tivihār rakhte hain, ve maryādā ke anusār chaltein. Apne sthānaki maryādā/Āchārya‑pravartan ko hi mānna chahiye.

Paramparā ka antar:

• Shvetāmbara aur Digambara dono me mool niyam—ukāla‑hua aur chhanna‑hua pani, din me hi—sādhāran roop se samaan hai. Suryāst ke baad ka niyam aapke pachchakkhān/maryādā par nirbhar hota hai.

Sambandhit pathanarth:

• Ukāle hue pani ka “kal” (vaidhta samay) par saral jānkarī:
• Paryushan me upvās/pani ke sadharan niyam: