Answer

“Ujale la pani no kal” probably means:

“Ujaale-la paani no kaal” — that is, the Jain rule about when filtered/boiled water may be used.

In Jain practice, especially among many Śvetāmbara traditions:

• Water should be filtered before use.
• Many Jains also use boiled water to reduce harm to tiny living beings.
• Boiled water is generally used only for a limited time period, depending on the tradition and local practice.

Explanation

In Jain Dharma, water may contain countless microscopic living beings. Therefore, careful Jains avoid careless use of water and follow rules such as:

• Filtering water through a clean cloth.
• Boiling water where the practice is followed.
• Using it within the accepted time limit.
• Avoiding drinking water at night in stricter practice.

The exact “kaal” — time limit — can vary by sect, family tradition, guru-paramparā, and local custom. So it is best to follow the guidance of your own Jain guru or sangh.

Spiritual Understanding

The purpose is ahiṁsā — minimizing harm to even the smallest forms of life. Jain Dharma teaches that spiritual purity grows when we become careful in food, water, speech, and actions.

Takeaway

“Pani no kal” is not just a rule about water; it is a daily practice of carefulness, discipline, and compassion.