Certainly! The "Namokar Mantra" (also known as "Namaskār Mahāmantra" or "Namuthunam/ Namuthanam Shloka") is the most significant and fundamental prayer in Jainism. Here is the shloka:

णमो अरिहंताणं। णमो सिद्धाणं। णमो आयरियाणं। णमो उवज्जायाणं। णमो लोए सव्वसाहूणं। एसो पंच णमोक्कारो, सव्वपावप्पणासणो। मंगलाणं च सव्वेसिं, पधमं हवइ मंगलं।।

Transliteration:

Namo Arihantāṇam Namo Siddhāṇam Namo Ayariyāṇam Namo Uvajjhāyāṇam Namo Loe Savva-sāhūṇam Eso Panch Namokkar, Savva Pāvappaṇāsano Manglāṇam cha Savvesim, Padhamam Havai Mangalam

This mantra pays respect to the five supreme beings in Jainism: Arihants (enlightened souls), Siddhas (liberated souls), Acharyas (spiritual leaders), Upadhyayas (teachers), and all Sadhus (monks). It is also called the Navkar Mantra and is central to Jain worship and daily practice.