During Paryushan, many Jains observe strict fasting and take only boiled water, especially between sunrise and sunset. While there is no specific universal mantra prescribed solely for drinking boiled water, it is customary among Jains to recite certain prayers or remember the Arihants, Siddhas, and other revered entities before consuming anything, even boiled water.

A commonly recited mantra before drinking boiled water (and also before meals or any intake) is the Navkar Mantra (Namokar Mantra):

णमो अरिहंताणं णमो सिद्धाणं णमो आयरियाणं णमो उवज्झायाणं णमो लोए सव्वसाहूणं। एसो पंच नमोक्कारो, सव्व पावप्पणासणो मंगलाणं च सव्वेसिं, पडमं हवइ मंगलं।

Transliteration: Namo Arihantāṇam Namo Siddhāṇam Namo Ayariyāṇam Namo Uvajjhāyāṇam Namo Loe Savva Sāhūṇam Eso Pancha Namokkāro, Savva Pāvappaṇāsano Mangalāṇam ca Savvesim, Padhamam Havai Mangalam.

Jains may also say "Michhami Dukkadam" (for forgiveness) or simply remember the Panch Parmesthi (five supreme beings) before drinking boiled water.

Tradition:

• Boiled water is usually taken only during daylight hours.
• Before drinking, a moment of prayer or silence is observed, remembering the path of non-violence and purification.

You can recite the Navkar Mantra silently or aloud before drinking boiled water during Paryushan.