Here is the transliterated Sanskrit and English translation of the invocation to Patanjali:
yogena cittasya padena vacam      
malam sarirasya ca vaidyakena

yopakarottam pravaram muninam      
patanjalim pranjaliranato’smi


abahu-purusakaram             sankha cakrasi dharinam


sahasra sirasam svetam
           pranamami patanjalim


hari om

To the noblest of sages, Patanjali,
Who gave Yoga for serenity of mind,
Grammar for purity of speech,
and Medicine for perfection of the body, I bow,
I prostrate before Patanjali,
Whose upper body has a human form,
Whose arms hold a conch and disc,
Who is crowned by a thousand-headed cobra,
O incarnation of Adisesa,
my salutations to Thee.