Answer

For protection when going outside, the most respected and universal Jain mantra is the Navkar Mantra.

Mantra:
Namo Arihantanam
Namo Siddhanam
Namo Ayariyanam
Namo Uvajjhayanam
Namo Loe Savva-Sahunam
Eso Pancha Namokkaro
Savva-Pavappanasano
Mangalanam Cha Savvesim
Padhamam Havai Mangalam

Explanation

This mantra is recited in Jain Dharma for peace, purity, and spiritual protection.

Simple meaning:

• I bow to the Arihants
• I bow to the Siddhas
• I bow to the Acharyas
• I bow to the Upadhyayas
• I bow to all Sadhus and Sadhvis

The last lines mean that this fivefold salutation removes negative karma and is the most auspicious of all blessings.

Spiritual Understanding

In Jain Dharma, protection is not only external. It also means:

• protection from harmful thoughts
• protection from anger, fear, and ego
• protection through right remembrance and self-discipline

Before going out, reciting the Navkar Mantra helps the mind stay calm, centered, and mindful. It reminds us to walk with ahimsa, care, and awareness.

Takeaway

For going outside, recite the Navkar Mantra with faith and calmness. It is the most sacred Jain mantra for inner strength, purity, and spiritual protection.

If you want, I can also give you:

• a short one-line Jain protection prayer
• the Navkar Mantra in Gujarati
• or a morning and travel prayer routine in Jain style.