Radha Soami Satsang

Radha Soami Gurus give Five Names or Paanch Naams during initiation which are as follows.

Omkaar, Rarankar, Jyoti Niranjan, Sohang, Satnaam.

These five naams are actually arbitrary and hence useless. Kabir Sahib has given a description of these five naams of Kaal in His shabad called "Santo Shabadai Shabad Bakhana". Kabir Sahib has clearly explained how these naams are a trap of Kaal. One is unlikely to achieve anything by reciting these paanch naams. 

Radha Soami Gurus have acquired these five naams from this shabad of Kabir Sahib with a slight alteration. The first few lines of this shabad are as follows.

संतो शब्दई शब्द बखाना।।टेक।। शब्द फांस फँसा सब कोई शब्द नहीं पहचाना।।
santo shabdai shabad bakhana | shabad faans fansa sab koi shabad nahin pehchana ||

प्रथमहिं ब्रह्म स्वं इच्छा ते पांचै शब्द उचारा।
सोहं, निरंजन, रंरकार, शक्ति और ओंकारा।।
Prathamhin brahm swan ichha te paanche shabad uchara |
Soham, Niranjan, Rarankar, Shakti aur Onkara ||

It clearly states the five naams which are prevalent in Radha Soami sect. However Radha Soami Gurus have changed shakti for satnaam.

You can read the whole Shabad at the following link. It has been beautifully explained by Sant Rampal Ji Maharaj. The Video below also explains the shabad.