This is a verse from the Ram Raksha Stotra, which is said to give the most powerful results in receiving blessings of Lord Rama.
Mantra: रामो दाशरथि: शूरो लक्ष्मणानुचरो बली |
काकुत्स्थ: पुरुष: पूर्ण: कौसल्येयो रघुत्तम: ||
वेदान्तवेद्यो यज्ञेश: पुराणपुरुषोत्तम: |
जानकीवल्लभ: श्रीमानप्रमेयपराक्रम: ||
इत्येतानि जपेन्नित्यं मद्भक्त: श्रद्धयान्वित: |
अश्वमेधाधिकं पुण्यं संप्राप्नोति न संशय: ||
Meaning: "Rama, Dashrathi, Shur, Laxmanaachur, Bali, Kakutastha, Purush, Purna, Kausalyaayey, Raghutam, Vedaantvaidya, Yagnesh, Puran Purushottam, Jaanki Vallabbh, Shri-Maan and Aprameya Paraakram.
There is no doubt that my Bhakt who recites these 15 names of me everyday receives my blessings, which are even more than those gained by the performing of an Ashwamedh Yagna.
The Ram Raksha Stotra verse can be chanted as per the wishes of the Sadhaka.