
Whenever you feel impure, sprinkle water upon yourself saying the following shlokas -
ॐ अपवित्रः पवित्रो वा सर्वावस्थां गतोऽपि वा ।
यः स्मरेत् पुण्डरीकाक्षं स बाह्याभ्यन्तरः शुचिः ॥
अतिनीलघनश्यामं नलिनायतलोचनम् ।
स्मरामि पुण्डरीकाक्षं तेन स्नातो भवाम्यहम् ॥
It is as good as taking bath.
You can do this in situations like -
Meaning
Whether one is impure or pure, or in whatever state one may be, whoever remembers the Lotus-Eyed One (Lord Vishnu) becomes purified, both externally and internally.
I remember the one who is dark like a dense blue cloud, with eyes like lotus petals. By remembering the Lotus-Eyed One, I become purified as if I have bathed.
No water?
Just chant the shlokas.
In other languages
ௐ அபவித்ர꞉ பவித்ரோ வா ஸர்வாவஸ்தா²ம்ʼ க³தோ(அ)பி வா .
ய꞉ ஸ்மரேத் புண்ட³ரீகாக்ஷம்ʼ ஸ பா³ஹ்யாப்⁴யந்தர꞉ ஶுசி꞉ ..
அதிநீலக⁴னஶ்யாமம்ʼ நலினாயதலோசனம் .
ஸ்மராமி புண்ட³ரீகாக்ஷம்ʼ தேன ஸ்னாதோ ப⁴வாம்யஹம் ..
ഓം അപവിത്രഃ പവിത്രോ വാ സർവാവസ്ഥാം ഗതോഽപി വാ .
യഃ സ്മരേത് പുണ്ഡരീകാക്ഷം സ ബാഹ്യാഭ്യന്തരഃ ശുചിഃ ..
അതിനീലഘനശ്യാമം നളിനായതലോചനം .
സ്മരാമി പുണ്ഡരീകാക്ഷം തേന സ്നാതോ ഭവാമ്യഹം..
ಓಂ ಅಪವಿತ್ರಃ ಪವಿತ್ರೋ ವಾ ಸರ್ವಾವಸ್ಥಾಂ ಗತೋಽಪಿ ವಾ .
ಯಃ ಸ್ಮರೇತ್ ಪುಂಡರೀಕಾಕ್ಷಂ ಸ ಬಾಹ್ಯಾಭ್ಯಂತರಃ ಶುಚಿಃ ..
ಅತಿನೀಲಘನಶ್ಯಾಮಂ ನಲಿನಾಯತಲೋಚನಂ .
ಸ್ಮರಾಮಿ ಪುಂಡರೀಕಾಕ್ಷಂ ತೇನ ಸ್ನಾತೋ ಭವಾಮ್ಯಹಂ ..
ఓం అపవిత్రః పవిత్రో వా సర్వావస్థాం గతోఽపి వా .
యః స్మరేత్ పుండరీకాక్షం స బాహ్యాభ్యంతరః శుచిః ..
అతినీలఘనశ్యామం నలినాయతలోచనం .
స్మరామి పుండరీకాక్షం తేన స్నాతో భవామ్యహం ..
Om apavitrah pavitro va sarvavastham gatopi va .
yah smaret pundarikaksham sa bahyabhyantarah shuchih ..
atinilaghanashyamam nalinayatalochanam .
smarami pundarikaksham tena snato bhavamyaham ..